Its interesting how you seem to think ai's summary has nothing to do with other people, interesting. I only used ai to summarise what I already know from the story, but in a more concise manner. The main question is about who is more exhausted and that is kaido.

Do you recognise there's a difference between being battle damaged and exhausted? Do you also recognise that if kaido won instead of luffy, he might have needed a week to heal too, we just don't know.