I want to ask all the low differs and mid differs if King and Kata vs Kid and Law is still the same ?
Anyway the problem remain the same as in chapter 1038 there is no haki feat in this island attack, so kata would be a problem for both and King which is super fast in reacting and has a better defense than Kaido has to watch only Law (but if self exploding aint damaging him I doubt internal damage would do that much to him).
I would say high diff to extreme diff for King and Kata. They would have an easier time vs Big Mom than this 2.
King&Kata shit on this 2 in term of haki feat.
They got interesting df power which alow a way better mobility speed than big mom
They aint watching someone preparing the attack (King&Kata) wouldnt even wait that Law activate kroom for exmple.
Big Mom was the best suited character to be taken down by law&kidd power.