P
luffy> abyss >> zoro
Luffy himself admitted that his previous attacks were only superficial even while in G4.
On the other hand Zoro is leaving perma damage to Kaido even after tanking combined attack of 2 Yonkos. And before that Kaido is dodging his attackd.
As far as the Manga is confirmed Zoro was > Luffy throughout the fight only for Luffy to be = to Zoro just this chapter.
Thats after getting a 2nd powerup let that sink in. The gap between Zoro and Luffy most of the timeskip should be obvious now.