Suggested by Anonymous Whitebeard is very powerful and one of the strongest in One Piece, but even he isn’t ready to go up against Kaido. Kaido is the most powerful Yonkou out there and his strength gets more and more impressive as you think about it. He would be able to break right through Whitebeard’s defenses and every hit would deal massive damage. Kaido is also faster so that would be it for Whitebeard. Kaido wins.