I'm not much of a horror fan, either. But I do have two favourites:
A Nightmare on Elm Street: A true horror classic. I originally liked this film because of Johnny Depp, since it's his film debut (he's the one that gets sucked into his bed, then the blood flushes up to the ceiling). But I now look at it as a milestone in horror film.
Constantine: Many people may hate me for liking this film because of a certain actor, but I thought this was Keanu Reeves' best performance. While I haven't read the comics that this film is based on (I'm not a comic reader), I still think it was a great film, and a great performance from Keanu.
I'd like to add Beetlejuice as well, but I haven't seen it yet.
