Different people have different reasons to like or dislike a series..it might be that they're not giving it chance because it's nothing like the Duel Monsters Yu-Gi-Oh! series and how the characters are different cards and all that.
OMG!!!!!!! why are we fighting about this??? I mean, they are all around the same thing and i personily like them all, out of all of them zexal because thats the reason i went back and started from the begining and watched Yu-Gi-Oh!, GX and 5Ds in the first place!!!!!