...No offense, but arn't you guys being a tad unreasonable with your choices? Picking zombies simply because you like them better or think they're more creepy.
While I like both monsters id have to say that I think the Ganado/Majini would win. Especially if it's the right one, (Chainsaw ganado) remember alot of their heads explode when delt enough damage and what happends? They bite Leon's head right off. Head gone=dead zombie.
Not to mention that long blade that comes out of their head can probably slice a zombie's head right off. Ganados also have the ability to team up and plot while zombies just mindlessly walk around. They have the ability to weild weapons and have better judgement on how to used those weapons. (As for them being infected, who knows what the infection will really do to them.)
Regardless of which enemy I think is creepier or cooler, I hand the belt to the Ganado/Majini in this particular fight.