You are right, there is a total lack of originality in the genre at the moment.
Since you mentioned vampires, I assume by "genre" you include fantasy-horror, in which case, check out American Horror Story
. It's not wholly original of course (what is?) and I won't actually claim that the writing is good per se, it's more like just a string of tawdry gimmicks being thrown at us in rapid-fire fashion, but it's the most entertaining train wreck I've seen in a long time. And the cast, at least, is excellent.