It's fucking weird bro. Like, G3 did more damage to Kaido than G4 did so far which shouldn't be the case, so I'll also wait and give Luffy the benefit of the doubt here.
Still though, Zoro's ittoryu attack with Enma (which he has yet to master) made Kaido dodge it while he is tanking G4 attacks left and right.
@HA001 @Fenaker took me some time, but I'm now 1000% on board that ISDS would've shat on KKG big time at Dressrosa.
Also, Zoro would've defeated Doffy