Vampires have been wholly tainted by the emo culture, so don't look for a return to horror goodness by vampires until the self-absorbed, woe-is-me camp is on the decline, which doesn't appear to be happening any time soon.
Unfortunately, most of the offerings in the zombie genre have been treading water in the cliche pool as well. I'm bullish on werewolves; they haven't been popular enough to be watered down and defanged. :p
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