Suggested by Anonymous Whitebeard and Big Mom are both Yonkou fighters and can fight at a high level. For a long time I had Whitebeard ahead of her but then Wano happened and she definitely passed him in portrayal. She actually looked reasonably fast at some points and she can keep up in raw power. So basically she is Whitebeard but with a little more variety in her attacks. Whitebeard’s devil fruit won’t be able to hold its own against her thunder and fire. Big Mom wins.