You can't scale a character to certain calculations who doesn't have feats to make up for it, prime whitebeard, garp and roger have pretty much no feats, the only thing they have going for them are statements.
Kaido is stated to have the "Highest battle power" out of all the yonko. As well as boasting the highest defense due to his scales/haki, like an "iron wall" in Road to Laugh Tale 4.
This means he scales over the highest offense in the verse, being 1 exatons, without any amps outside of advanced Haoshoku. CRT the entire verse and then 90 others if "characters not doing something themselves shouldn't scale them" logic is that big with you. Because Whitebeard based on his FEATS scales to less than continent level while Kaido scales to 4 petatons based off the bajrang gun calc. It's a one shot difference if "only what they show" matters.
Oden fought kaido in both his dragon and base form, and gave him his massive scar, the same oden that got swiped to the side by roger.
You would need to be able to prove that Oden got a ridiculous amount stronger than Roger / whitebeard to match up the math.
Kaido seems to fight better in his base. He was getting cut up by the scabbards in zoan then proceeded to wash all of them in base.
Oden has a "MANY TIMES" statement. Many is anywhere from 3 to 8. That was after the Roger clash, and that's who Kaido fought.
Big mom stating that he has the highest battle power out of the yonkos is no argument, as whitebeard is out of his prime.
No.
Skull stated that while Whitebeard was still alive during the Ace novel. Kaido's card also states he's the most powerful Yonko.
Whitebeard is also stated to have the same strength and vigor as when he was young before his disease started crippling him in marineford, meaning Kaido scales over primebeard battle power wise.
How does kaido have greater range, when whitebeard can set off seaquakes?
Sea quakes are still dura neg vibrations. Kaido eats dura neg for breakfast. Kaido fires Boro breath three times the range of onigashima and his Kaifu's slash across the entirety of the skull dome. Whitebeard has higher DC range but his AP remains the same.
future sight is simple haki which everyone has.
Future Sight is advanced. Kaido, Katakuri, Luffy and Yassop are the only ones shown to have it.
Durability also isn't an argument, as one piece characters are all insanely durable
It is when Kaido has shown to be pretty much unscratchable unless you use extremely powerful buso or haoshoku coating or dura neg. Whitebeard is more prone to getting stabbed/shot through than Kaido.
considering that whitebeard had half of his head blown off, and had his organs fried and 2 massive holes in his chest combined with hundreds of other wounds, while having heartattacks due to his disease.
All of that is endurance.
Kaido endured getting stabbed tens of times by scabbards, hit by dura neg that obliterates targets dozens of times by Luffy to the chest, abdomen, face- you name it. Tanked
gamma radiation to the heart and throat that was shown to make organs fall apart when used on Doflamingo, and had his brain literally compressed by awakened Luffy's punch through the head.
Kaido ate more attacks than WB. He just doesn't show it because he regens most of them prior to Zoro's scar because of his Zoan recovery.
Yes, titles absolutely do play a role here, it's portrayed literally all the time that the pirate king is the apex of strength, together with whitebeard and garp.
Okay, if titles change this match.
Then Whitebeard's the "strongest" because he lived the life of the strongest, not because of battle power.
Kaido is the strongest because he has the highest battle power, confirmed two or three times in Ace novel, his character card and databooks.