The only way a werewolf would beat a vampire is if the vampire was the smallest, weakest vampire in the world and the werewolf was the strongest of its kind.
It all depends so much on the specifics of the kind of either werewolves or vampires... I've seen utterly awesome interpretations of both... What about other lycanthropes? Why is it always the werewolves that get all the attention?
Anyway, stereotypes... Evil... Prefer the werewolf stereotype, if I must choose...
If we go D&D (Cenere started with WoD, I can continue the RP relatedness...), werebeasts are just so much more awesome... So much depend on the definition! D: