Pet Semetary and The shining.

The Excorcist.

Any movie that uses children as freaky demon-spawn. Kids can be the scariest SOB's in movies. The first that scared me was the little kid in Pet Cemetary... the one that got creamed by the semi then came back from the dead. Creeps me out...

I'll break mine down by genre...heh:

Slasher:
Freddy vs Jason
Friday the 13th Pt 6: Jason Lives
Halloween
The Last House on the Left

Supernatural:
A Nightmare on Elm Street 3: Dream Warriors
The Exorcist
The Ring
Prince of Darkness

Real Life Creepiness/Based on a True Story:
The Texas Chainsaw Massacre (loosely based on Ed Gein)
The Silence of the Lambs (again...Ed Gein)

Old School:
Psycho
The Horror of Dracula
Night of the Living Dead (Original)

I know I'm missin' some that I'll kick my own ass for omitting, but whattaya gonna do?

Ya, Silence of the Lambs was alright, more sickning than scary, made me feel uneasy.

the omen

go find The Asphyx. scariest film ive ever seen.

Black Friday with Vincent Price owned.

im a Hammer Films junkie...Christopher Lee and Pete Cushing pwn all...

American Werewolf was good stuff (scenes talking to mangled zombies was just to surreal and really ahead of its time in an artsy sort of way)

Original Hellraiser was a treat.

Alien-not many movies give you the goose bumps...less is more kiddies...less is more

First Nightmare on Elm was great.

Reanimator and Bride were really out there. Same goes wtih Evil Dead 1 and 2...Dead/Alive anyone

Dead/Alive = goriest film ever. Outrageous/unrealistic gore, but gore nonetheless.

Man, it's been a while since I've seen that one.

i'd hit it oOo: