Nobody in particular.
My "Top Friends" should give you a pretty good idea of what I like, but it's by no means definitive...
Anything by Kubrick, Gilliam, or Tarantino. I tend to prefer movies where most or all of the main characters are dead or dying by the film's end.
I own 2.
Fiction: Sci-fi mostly. Niven, Farmer, Harrison, Heinlein, etc.
Non-Fiction: Technical reference manuals.