There are actually a few shows that are angsty teen soaps with vampires (e.g. The Vampire Diaries, why are there so many bad vampire TV shows), True Blood is not one of them. I understand not liking it, there's a lot not to like, it's pretty much what you'd expect from Alan Ball, if you've seen Six Feet Under or American Beauty. Moments of brilliance, good acting, incredibly unlikeable characters, and lots of filler. V addiction story with Lizzy Caplan was great, the maenad story with Michelle Forbes was inspired but way too slow. Yeah, the show is really hit and miss, although Deborah Ann Woll and Alexander Skarsgård keep me watching.
Luther is silly, and it's greatly enjoyable. The Wire's the best TV show ever made, setting your hopes so high really would ruin a good show like Luther. Luther is like someone took my fantasy of being homicide detective.
Dexter's first season was so good that it would have been almost impossible to keep that up, I thought the Lumen and Lila stories were great. Everybody hyped the Trinity season but I didn't care for it at all.
Shows that were hyped and disappointing:
Six Feet Under, I just ended up hating all the characters, while being perplexed by their behaviour, and being bored by half of the episodes.
Breaking Bad, ditto.
Battlestar Galactica, I'm fine with the supernatural but they shouldn't just be manifestations of writers lack of planning, foresight, and skill, there should be rules, explanations.
The Increasingly Poor Decisions Of Todd Margaret, I just didn't find it funny.
Terra Nova, too formulaic and tame.