It is ok, I understand that some people have terrible taste in movies. Others like to post in a suggestion thread and complain about selections without making their own. To each their own indeed. Zombieland isn't scary, but it is a 'horror' film worth watching for kicks. I assume you've seen Alien, but if not, the movie scared me as a kid.
I enjoyed the first part (prior to the cave people being introduced) very much. They could have made an excellent movie without bringing in that aspect.
I'll have to rewatch Jacob's Ladder. It never really impressed me one way or the other, but a lot of folks have given it good reviews.
I can't recommend anything other than the obvious ones right now. Exorcist is probably my favorite horror movie, so its always a good fall back. Right now I am trying to find Cannibal Ferox & Cannibal Holocaust to watch tonight.
I liked this movie until I found out they tried to pass it off as real, it is complete fiction.. anyways I liked Pandorum, not really a true horror flick but it has a decent story and some jumpy moments.
I like when they try to make movies seem like they really happened. It is a bit of let down when you find out it is not true at all, but still its awesome to get faked out the first time around.