Manga facts:
-Zoro and Killer doing the same to Kaido.
-Zoro and Killer fightning equally 1 vs 1 offpanel.
-Zoro and Killer faint after both receive the attack of the other.
- both were still not using their arsenal, it's like saying a kid is relative in strength to a professional bodybuilder just because they both can lift a 1 kg objects fairly easily
-this is the proof that you didnt read my thread thoroughly, i wasnt comparing both. Also, i was talking about zoro's endurance, not overall
- This again proves you didnt read my thread thoroughly. Killer got knocked out right away after Zoro hit him. On the other hand, zoro didnt get knocked out in an instant, at least it should've immobilized him, but it didnt