Ikki basically does the same vizualization (he did this before the fight with Stella and even against
Byakuya Jougasaki where they both analyzed the battle from start to finish and both knew who would win and exactly when that win would happen). As for the precognition, let's start one by one. So first is the information gathering:
As if stealing the principles of its invention from its tricks, expose the patterns of thinking from the words and the voice. And then from everything there, investigating the previous degree of piercing's tendency, the personality, technique, design, by integrating, analyzing, understanding, exhausting data on all kinds of things―grasp everything about the person called Shizuya Kirihara!
That's still inferior to Thousand-Image Defense. Thousand-Image Defense does exactly the same thing,
forming an exact copy of Kojiro's opponent in his mind that allows him to
evolve endlessly in response to his opponent, with such potency that in an instant he was able to
match an opponent that in his mental simulations had killed him over
18 times. If in a moment Kojiro is somehow not as skilled as Ikki, he will be in a few moments, because that's how fast he evolves. Kojiro can also repeat this at least
thousands of times in an instant.
This is also the same Kojiro who has over
400 years of fighting experience using the Thousand-Image Defense, with such an ability allowing him to access far, far more experience than he would normally be able to grasp from simply training for 400 years.
And just some more:
As if her clothes, skin, and muscles were being read fiber by fiber, her every little act was being studied. And from that gaze, she realized that Ikki was trying to understand the Imperial Arts from her movements.
"My sword style isn't so simple that you can see through it easily!"
"…No, I already got it."
He also analyzes everything from his opponent, the personality, voice, design etc to grast the "identity of someone". So i would call them equal in this regard, sure, now the precog is where it differs:
Whether it's sword technique or people, there's a principle that fundamentally governs all their actions. You can call it a system of values. By using that―the person's actions and plans, what that person is thinking right now, how I myself should move, what countermeasures should be taken, whether to move forward or draw back, to attack or defend―every possible action is completely and quite clearly predictable. For example, at this moment, I know that you've taken three steps back."
Kirihara's body froze in fright at Ikki's light declaration, and he leaked out a soundless shriek, because what Ikki had said was unmistakably true. But of course Ikki could know Kirihara's response. The principle he spoke of wasn't a notion limited to the here and now. That predictability of human thought was a firmly-rooted identity, not something that could be changed in an instant. However much the person himself wants to outsmart that identity, even the thought of outsmarting it arises from the identity itself, and therefore couldn't escape Ikki's perception. By stealing the opponent's identity, Ikki seized all those thoughts and feelings.
If Ikki had to name this technique, it would be Perfect Vision. Before its power, Kirihara finally understood. The true dreadfulness of the knight called Ikki Kurogane wasn't sword technique, a one-minute boost, or anything else like that. It was his ability to expose and reflect the true nature of everything he sees, a discerning eye like a shining magic mirror. That mirror could capture even the invisible Hunter. Therefore―
"I see everything you're capable of doing. In this match, I'll take the win!"
Grasping the identity of someone, as previously stated, means nothing in terms of combat skill. Everything else that is stated in this scan is something that Kojiro can already do on his own. To create a perfect copy of his opponent he'd already have to analyze things such as clothes, skin, muscles, and the fundamentals of their technique for the Thousand-Image Defense to be any good.
In fact, Kojiro's ability to analyze is so good and so vivid, that simply from entering the room, a blind man was able to
visualize every single opponent that Kojiro had fought and trained against in his mind, with his mind being assaulted with a
vivid image of countless swordsman. This was when Kojiro was alive, and complete fodder in comparison to himself ascended to Valhalla.
Ikki is capable of actually seeing all the possible actions someone can take, they are all predictable but unlike Sasaki who just knows the possible routes, Ikki knows exactly which of those moves Kirihara will make, an ability that can't be fooled as everything stems from identity. So the difference here is Ikki does what Sasaki can, but he takes it a step further and doesn't stop at just knowing the possible routes, but he also knows the true routes, not to mention that as stated he also understands the thoughts and feelings of someone along with their actions and possible moves. So basically he knows everything regarding a certain person. There is more to it, but i'll mention it below.
So you say he was capable of dodging or reflecting hundreds of attacks. Well Ikki did the same except he predicted shots that didn't even have a clear intent as they were just carpet bombing the place rather than being shot directly at him from his opponent:
There was no pattern to the destruction. The Noble Art Million Rain was an attack of indiscriminate scope made of more than a hundred pieces of iron. Kirihara had concluded that if his thoughts were being read, he should carpet-bomb the area without thinking. The idea had to be correct, but even so―
"Why!? Why doesn't it hit!?"
―Ikki cleared away the invisible arrowheads, running through the destructive rain without slowing the slightest and darting through the rolled-up cloud of dust. In truth, he had already seen all of it.
"It's useless, you know. No matter how much you try to keep your heart clear, you want to beat me. You want to kill me. The urge for that frightened heart to shout its killing intent can't be restrained. No matter how much you want to attack with an unreadable mind, the killing intent dwells inside you."
Kojiro can quite literally also
learn the exact moves of the opponent, so Ikki being able to see the "true movements" or the "thoughts and feelings" of the opponent is irrelevant. Being able to visualize thoughts and feelings is fair. Being able to visualize "actions and possible moves" means nothing as we both know Kojiro can do that, you really just repeated yourself for no real reason.
There was no pattern to the destruction. The Noble Art Million Rain was an attack of indiscriminate scope made of more than a hundred pieces of iron. Kirihara had concluded that if his thoughts were being read, he should carpet-bomb the area without thinking. The idea had to be correct, but even so―
"Why!? Why doesn't it hit!?"
―Ikki cleared away the invisible arrowheads, running through the destructive rain without slowing the slightest and darting through the rolled-up cloud of dust. In truth, he had already seen all of it.
"It's useless, you know. No matter how much you try to keep your heart clear, you want to beat me. You want to kill me. The urge for that frightened heart to shout its killing intent can't be restrained. No matter how much you want to attack with an unreadable mind, the killing intent dwells inside you."
So while both dealt with a huge amount of attacks, Ikki dealt with attacks that were not from his enemy directly, which means said attacks literally didn't have any thinking, yet ikki could still see through this (said attacks and the user were all unperceivable by all 5 senses iirc cus they used the concept of hunting) and deflect them.
Being able to counter random Carpet bombing does not mean that the opponent was unpredictable. It just meant they were throwing out attacks without really thinking about it, which anybody can do, it doesn't make their attacks unpredictable or unreadable because their being a schizophrenic and throwing out random attacks. It's a non-feat.
Meanwhile, Kojiro is capable of countering a dome of
thousands of attacks from an opponent that had
superior analytical prediction to his and who was both capable of blitzing Kojiro
several,
several times over, and he still countered it and evolved against it.
The analyzation point. That is definitely good, but Ikki already does all of that, the vibration of the air thing, even notices abnormalities in sound waves. As for the last point it seems like it's just a heavy hyperbole. As analyzing the air and trembles of the earth doesn't really equate to analyzing all of creation, so it's just a hyperbole to say that "he was analyzing everything there". Cus that line feels the same as saying "he cut appart every building in the area, and the multiverse along with them". It goes from normal stuff to complete batshit crazy without further context. So since it's just a questionable statement it's best to wait until it has more elaboration or an actual feat.
It is hyperbole, so it's best to either treat it as a statement of Kojiro's upscaling to his previous feats to an absurd degree instead of him literally scanning the universe, though it's probably possible to give him planetary range with his scanning if I
wanked tried.
At that time, Kuro-bou saw and stole the princess's Imperial Arts, but stealing a sword technique isn't an ordinary feat like imitating a style. From something like a style or swordsmanship, the accumulated history is studied, taking the ideas arrived there, and exposing and returning with the principle of its foundation. That's what we call stealing a sword technique.
Swordsmanship describes its own knowledge, style describes its own history, and breathing describes its own principle. If one followed the branches and leaves of a sword style and arrived down at the root, then it wouldn't be hard to grasp that style's techniques and combinations, or its approach in facing different situations. This was what Ikki was saying.
"And if I can understand the style that far, I can also create techniques that outperform my opponent's."
What was the ultimate way to surpass an opponent's sword style? Simply correct all the flaws of that style to create a more perfect one, and the new would be plainly superior to the old. The new style would account for all the old style's faults, and even compensate for its weaknesses. It would eclipse its precursor in every offensive and defensive situation.
And as the quote above says besides copying a style, he also perfects the style in every way making it superior to the previous user. Furthermore he copies parts of styles that even the original user did not know such as when he copied Ten I Muhou by analyzing Ayase even though Ayase herself couldn't perform the technique.
Kojiro's main strength is not his ability to copy techniques, so this is not really relevant.
