who is better zero или kaname ((I prefer zero but trying to resolve a conflict))

Well, I don't think Ты can really resolve that conflict. Some people will say Zero, others Kaname. It's just a matter of opinion and Ты wouldn't be able to convince a strong Фан of the other character.

But if you're just asking which character every Фан prefers (if the conflict is basically which is most loved here) then my vote goes to Zero. By a mile.

i too like zero more!! :D

Of COURSE it would be the zero