I don't see Sanji stronger than King and Marco so my stance is alright for now.
Are we just ignoring how Asura Zoro performed against Kaido? Sure, the former used a very crude form of ACoC but it shows what he's capable of. I'd say that KoH Zoro would definitely perform better than rooftop Zoro bcoz KoH is an entirely new mode. Yamato has ACoC but her AP is really pisspoor. She barely damaged Kaido on screen. That's why I can't see her on par with KoH Zoro, let alone being stronger.
Man please
Koby isn't going from vet to inbetweener with one PU
Koby isn't equal to Sanji
No Sanji is above King and Marco (as much as you coping, King is barely above Queen per Oda narratives, just like Kaku was >= Jabra)
Ashura is one move thing, that was casual Kaido
What exactly did Zoro do? Did he fight kaido for even 5 min? Nope
AP isn't everything in battle! Yamato is faster and more skilled and also control CoC better! She also has better endurance , stamina and durability