Kaido fought both of them yet he didn't single out Zoro. Kaido always believed Luffy was the only one that could challenge him.
This was before he got sent down.
Same with Lucci.
Zoro used AdvCoC attack (KoH) which resulted in big gashes across Lucci's body. But he didn't lose consciousness and he still took subsequent attack from Jinbei. The fight took ages to finish where as Luffy was done and had already finished off Kizaru and was fighting Gorosei. Luffy didn't even use any Conqueror's haki attacks in that fight.
Same people here would have you believe Cutting attacks are superior. Yet both instances of Zoro using AdvCoC attacks against Kaido and Lucci never resulted in anything other than big cuts.
This was before he got sent down.
Same with Lucci.
Zoro used AdvCoC attack (KoH) which resulted in big gashes across Lucci's body. But he didn't lose consciousness and he still took subsequent attack from Jinbei. The fight took ages to finish where as Luffy was done and had already finished off Kizaru and was fighting Gorosei. Luffy didn't even use any Conqueror's haki attacks in that fight.
Same people here would have you believe Cutting attacks are superior. Yet both instances of Zoro using AdvCoC attacks against Kaido and Lucci never resulted in anything other than big cuts.