Werewolves. Because no matter how sexy vampires might think they are, there's nothing quite like the feeling of ripping into someone with your bare hands.

The call of the wild, the whole run-through-the-forest-without-fear-,-muzzle-high-in-the-air-smelling-the-earth-thing.

I'd give a better explanation, but I can only say that werewolves to me represent freedom of a higher kind.