1.
May - I have lost count of how many times I have watched this
2.
Audition - one of the only movies that can make me cringe.
3.
Haute Tension - released here as "High Tension" but I like haute better, not to mention, the french audio > english, anyways.
4.
The Eye (2002) - this has been in my top movies list for a while (not just horror). the sequels, not so much.
5.
The Hills Have Eyes (2006) - although I love the original, this is one of the best remakes I have ever seen, not to mention the guy who directed HT did this
6.
Just Before Dawn - this is a nice little slasher from the 80's, it is one of the few slashers I have really ever liked.
7.
One Missed Call (2004) - I have watched this so many times too
8.
Rosemary's Baby - This movie have me nightmares haha
9.
Ringu - this frightened me so much more than the remake when i was 11 haha, thought it isn't as frightening now, I still love it.
10.
Vacancy - ok, this movie is not truly horror, but it certainly is frightening to me (and pretty underrated if you ask me), but it sure made me very paranoid after I watched it after it came out.
runner ups
Diabolique (1955) not really horror, but the movie is very suspenseful
Ju-on
I don't get scared easily (I would actually say many of these movies I have not been scared by (haute, audition, rosemary's baby and ringu) are the only movies that have actually frightened me from the list (just to note, vacancy was not really scary but it did make me paranoid
)