Hmm... that's a tough one... The Mist, The Descent, and the Silent Hill movie are pretty good(although the ending to the Silent Hill movie not so much...). I actually think horror movies are kinda funny, so I'll just watch random ones most of the time. The worse the budget, the better the movie I say, lol!
The latest one that I watched was Drag Me To Hell, and boy was that ridiculous! Hahaha, my friends and I were laughing the whole time because of how over the top it was.