I'll agree that V/H/S was MASSIVELY disappointing. I wanted that movie to be so awesome, and it definitely fell pretty flat for me. I enjoyed maybe 2 of the 5 stories.
Not a horror fan at all, but think Session 9 is a great movie. It's under the horror genre, but I'm not sure how it fits among others in the genre. A more seasoned horror fan will have to chime in on its horror elements.
I enjoyed Session 9 pretty well..saw it a couple years ago. As an FYI, it's also where this popular Caruso gif comes from:
I'll agree on House of the Devil as well. I watched it about a month or so ago (see this thread
). I liked it, but if the OP said The Strangers was slow and he fell asleep, then HotD may not be for him...the buildup in that one is excrutiatingly slow. Nothing really happens until the last 15 minutes or so of the movie. But the setting is definitely creepy and it's a great homage to the horror flicks of the 70s/early 80s.
Also would recommend Black Death. It's not a horror really, just more dark (as discussed in that thread I linked). But it was really good. Plus, it has Sean Bean in it, and he's awesome.
Search the site; there have been some good horror recommendation threads in the last year or so. (I'd use google rather than the piece of shite search function on this site though)