Is The exorcist still the scariest movie of all time?

I saw the movie when i was six. It wasn't very scary for me, but when i watched the version with added scenes i cried when she spider walked down those stairs. (I was six). Ive seen it over a hundred times now and to me its still quite scary. Alot of reviewers still call it the scariest of all time, do you agree? (if you dont agree please tell me the movie you think is the scariest and specify what its about) Thank you,