What's your favourite horror movie?

I thought it was The Ring, but I rewatched it recently, and it was ok, but not as good as I remembered. I guess the first thing other than that that pops into my head is Event Horizon. I honestly watch too many movies though. 28 days later, and weeks later are pretty good. Pitch Black, The Grudge, Body Snatchers, all of the Resident Evils, all of the Underworlds(not really horror, but,,), Silent Hill, From Dust Till Dawn, The Amityville Horror,,, All of those are worth their time to watch imo.