the amytiville horror (original film) scared me to death (the house shouting get out! to the preist & the friend of the little girl, thik was the devil if i remember)
halloween is probably my fav & first time round scared me shitless
exorcism of emily rose took me a long time to watch as had to pluck the courage up & wasnt as scary as i thought it would be.
the first nightmare on elm street also scared me (everyones gotta sleep at sum point)