Personally, I love horror comedy. I find a good one endlessly rewatchable. Cabin in the Woods, Return of the Living Dead, Tucker & Dale, Scream, frigging Killer Klowns from Outer Space! Definitely my favorite.
Otherwise I’m really into paranormal & zombie horror. I think that would make up my top three. Fast > slow zombies.
Probably eldritch/cosmic horror or something sci-fi-ish. I kind of view horror as a kind of speculative fiction where most titles are huge disappointments. I still watch a fair bit just hoping that there will be An Idea. Something that will make me re-think my life and haunt me for years like any good book does.
No body horror or crime or anything plain, cheesy, or tropey like zombies or vampires. Or torture porn of any kind.