No offense Sparkle, but this is complete headcanon.
That's Prime Madara, who's stronger than Edo Madara. The difference wouldn't be quite as dramatic in Edo Madara's case. Regardless, in terms of actual values, there's no reason to scale Itachi's Armored Susano'o above Sasuke's.....well, any of his Susano'o versions tbh. There's just no connection there.
Doesn't change anything about what I said though. Obito thought Itachi was a threat because of his abilities. He literally cannot physically harm him lmao.
I doubt it. His only chances are Amaterasu and Tsukuyomi, but Obito can always Izanagi out of Amaterasu like he did in canon. Regardless, it's not a physical comparison at all.
I'm not seeing the struggle. Especially when Bee easily beat him later, and overwhelmed Sasuke, who's stronger than Suigetsu.
Maybe, but he didn't really "tank it", just survived it.
Not without direct feats or statements, it isn't.
That's your opinion, which I respect, but I need something more concrete than that.
We don't even know if Itachi trained, how much he trained, for how long, etc. And experience doesn't translate to physical strength.
We have confirmation that sick Itachi was physically weaker than before, and it only got worse for him from there. I don't think vague "training and experience" can outweigh "he's dying and nearly blind".
He smacked through, yeah, but it still ate enough of the impact to where Sasuke was mostly unharmed.