What are your 20 Favorite Horror Movies?

[All Hail Duke]

in no particular order:
a nightmare on elm street
the thing
american werewolf in london
videodrome
scanners
the fly
hellraiser
texas chainsaw massacre
re-animator
return of the living dead
dawn of the dead
creepshow
the shining
friday the 13th part 2
evil dead 2
a nightmare on elm street 3
scream
candyman
john carpenter's vampires
the lost boys