Rosemary's Baby. You know, I'd heard over and over all about how great this movie would be... and really? Not so much! Runner up: Friday the 13th.
The Thing, no question! By which I mean the original remake, not the remade remake. :)
I am torn on this between 'From Dusk til Dawn' and 'Blade: Trinity'. But I think... I lean to FDTD.
'Dead Alive' - I'm one of about four people I've ever met who've seen this one. Also, 'Feed' - I'm pretty sure only the really die-hard Alex OLoughlin fans have seen that one, too!
I would have to say, Akira.
Hmmmm. caroline_claire reminded me the other day of The Fog, which was pretty freaking awesome, and I still love Creepshow and Amityville Horror... but I think I'd have to pick Phantasm. Just cause.
I don't really know! It's a lot more common that there be a movie that everyone else hates but I love than it is the other way around! Hostel, maybe?
DUDES! Shaun of the Dead, hands down.