I must admit that all those horror movies don't really scare me and if they don't, they don't work. The only one I can recall that I think is good is "Alien" (the first one, can't remember no. 2). "The sitxth sense" was okay, but I wouldn't call that a horror movie. Okay, the first "Nightmare on elm street" was alright as far as I remember.
I've seen Psycho, I still know what you did last summer, Silence of the lambs, The shining and others I can't remember right now, but I didn't think any of them was anything special. I saw some of one of the Friday the 13ths, I can't remember which, but that was pretty boring.
"The fog" was crappy IMO and "Seven" was terrible if you ask me. It was a long time ago I saw "Seven". I think we rented it on video when it came out, so maybe I would like it if I saw it for the first time now. I won't see it right away, as I can remember the ending. "Starship troopers" was terrible as well. It was super duper corny and so goddamn stupid and American.
I don't know what it is about horror movies, but they just don't scare me. The only one as I said was "Alien", but I would more categorize that as a science fiction movie. I've read books that were scary though. A book like "The dark half" by Stephen King is really scary and so is "Monstret i kælderen" (translates to "The monster in the cellar/basement") by the Danish writer Dennis Jürgensen.
I've seen either "Brain dead" or "Evil dead", I always forget which is which. The one I saw was no. 2, but I was told that no. 2 is more or less a remake of the first, just better filmed, with better production and so on. It's the one where he cuts his hand of. Maybe it was "Army of darkness"...? But anyway, it was alright as far as I recall, but it seemed more of a comedy.