Bm went all out dude, and her best attack got cut in half by a DFless Law, get over it. We haven't even seen a lick of Prime Rayleigh going all out, all we know is at old age and rusty he could hold off an Admiral without losing a drop of blood, and that he is placed in the same breath as WB. Complete false equivalence.
"Best attack"
That's ridiculous headcanon.
No people would said that's her best attack
Even a mere ikkoku sovereignty looks more powerful, and there's several other tons of attack that did more job than "misery"
"We can't take two legends at same time" isn't = both are equally strong.
Big mom and Kaido are way more being compared relative to each other according to narration.
Even to the point she even stalemate him for 3 days whether both go all out or not.
Fighting 1 Admiral for a short amount of time and already out of breadth. And compare that to sick WB feats in the war?? Lmaooo
Even at old age WB look way more better portrayal wise and feats while being sick. I would even say at prime days, the difference would even be greater.
"Same breath" yes.
We don't need to see Prime Rayleigh go all out in panel.
He stalemate the Whitebeard commanders who are all teenager and fledgling even with help from his crewmate for 3 days( whether he was serious or playing around doesn't save anything)
A Yonko level or above character helping Roger + other Roger pirates wouldn't need even long hours to beat WB with his youngsters commander.
Sengoku saying Kaido + Big mom forming alliance would make the worst pirate group in history aka stronger than Rocks crew let alone Roger pirates
Why would that be??
Because obviously a pirate group led by two people who are as strong as current Kaido and Big mom would make strongest pirate group.
Yonko Kaido + Yonko Big mom > Rocks crew > Roger + Rayleigh is from Sengoku narrative point
Whether you like it or not.