I saw some of those Guinea Pig videos about ten years ago and they were pretty disturbing. Haven't really been much of a horror fan ever. Had a brief fling with it freshman year of high school when my friends and I would try and rent the most bizarre horror stuff we could find at the local small town video store. Even then though, I preferred other stuff, that was more them than me. There are a few that I love (Shining, Jacob's Ladder) that are more psychological and shit. And there is stuff like Evil Dead and Peter Jackson's early stuff which is really more fun than anything. For a bit there years ago I tried to explore stuff like Hellraiser and Barker's work in general as a friend of mine whose taste I respect quite a bit had told me some interesting stuff about him and he seemed kinda "classy" as far as horror is concerned, but it never really stuck.
One horror director who I really do enjoy is Mark Borchart. He's got so little of it released, but seriously I watched Coven on shrooms down in Chile and that movie is so great. It's a super psychedelic film, even when not tripping. It's also completely psychological. The atmosphere is amazing too. His work reminds me of kind of a film version of my music. The atmosphere and subject matter is very similar. I've long thought about contacting him to do a music video for Pink Reason, but I don't really have the money to put up for something like that. I'd really love to collaborate with him though.
Read a bunch of Poe short stories that my little sister had laying around one time when I was on acid though, and that was really intense. Mad respect there, but again, haven't really read much other than that. Have always meant to check out some Lovecraft, but every time I have I've never gotten very far. His influence is felt in a lot of stuff I enjoy though.
I guess I don't really understand the appeal of most horror. Can anyone explain?