One Piece Big Mom Vs. Although rivals right now the two belonged to the same pirate crew long ago called Rocks Pirates captained by the legendary Rocks D. Katakuri vs King is really interesting but currently think Katakuri has shown more and Future Sight should allow him to avoid Kings attacks.
But then if she goes into a rage her stamina is definitely lower. While Big Mom is still to this day exceptional Kaido is believed by many to be a top 3 unit in the. Hes the one that taught and manipulated her to become the pirate Big Mom and when she forgot her memories including forgetting Strussend she want back to her natural childish ways.
Kaido VS Big Mom is a unit of extremes but one is even moreso than the other.
Big Mom and Kaido are two of the Four Emperors of the Sea in the world of One Piece currently. After revealing the truth about the wedding Pudding removes Reijus memories of their encounter and has her taken to medical help so she can meet her doom at the wedding tomorrow. One Piece Manga and Anime Vol. Enel is no where close to as strong as Ace and Ace would likely barely stand one shot by Big Mom.