The Exorcist was just friggin in a class of its own. That movie cant be compared to any other and shouldnt be. It was fugged up.
The Ring freaked me out. I couldnt even look at the dang tv screen until after 7 days passed. Im sry, but theres something about the look on what was left of that chicks face in teh closet that was more than disturbing. Although the spoof that made fun of it was absolutly friggin hilarious.
Darkness Falls. Wow. I am deathly afraid of being anywhere in the dark by myself. I had severe nightmares as a child, (like to the point of causeing physical problems) and still do. I take medication to tone them down. sO Id have to say this one was one of the worse. IWhen I think of it I cant walk to another room if there is a dark space in between. Call me what you will, I dont care. I dont recommend that movie to anyone that is slightly scared of the dark. /shudder
Although I must add its kinda hard to say what movie is the scariest unless it is accepted 'to each his own'. Different things scare different people. Im more scared of phsycos than zombies and crap, and who might be hiding in the dark with a knife than some freaky stinkin ghost, so that would explain what scares me. People are afraid of different things.
I forgot to say what the scariest movie ever was to me tho.
Arachniphobia. I will not, cannot, refuse to ever watch this movie again. I get to the part where the spiders fall from the trees at teh beginning and I turn it off. And have nightmares. I hate HATE HATE HATE spiders, despise them, think they are the ultimate evil. Forget teh devil, spiders will kill us all.

:P