The Exorsist is a great movie, love all horror films. Love Zombie movies, return of the living dead and the scene were the zombies get on the radio and ask dispatch to send more cops, classic!
Vampire movies suck, lol....
but only one movie has ever put the fear of God in me and thats because its plausable, it can happen and it does, hundreds of times a year all over the world. First seen it when I was twelve years old and nothing since has ever frightened me...
Jaws
Today I love that movie and have seen it dozens of times...
just dont ask me to get in the water...
If its actually plausable, its more scary to me, the only other ones that comes to mind is, Silence of the lambs and Saw, but these two movies are not in the same catagory and they didnt scare me...