The Exorcist (of course! I still can't watch the whole thing)
Texas Chainsaw Massacre (the original, I HATE the Jessica Biel remake)
Poltergeist
It (cause it still scares the beejezus outta me)
the older Chucky movies (excluding seed of & bride of)
all the Halloween movies
The Exorcist
Poltergeist
And for the sheer sickness of the mind it takes to create a movie like it, Hostel. I realize many people wouldn't call that one a horror movie, though.
Carrie and The Rage: Carrie 2 (the remake of Carrie was terrible)
The Fog- the '79 version (the remake was horrible, besides I couldn't get the ending)
I Know What You Did Last Summer
Friday the 13th
Psycho (the original one)
I have never seen Black Christmas (original or remake), but I would like to see it.
I am really picky about horror movies. I don't typically like what everyone else likes (i.e. The typical classics).
My favorite:
1. American Psycho (The movie is not your typical horror flick, but it is absolutely brilliant. Why am I fascinated by a hot guy that goes on a killing spree?)
2. The Grudge
3. Saw
4. I Know What You Did Last Summer