My favorite genres would have to be anime/animation, horror, comedy, action, fantasy, some sci-fi, romance and drama. Basically any genre really as long as the acting is good and the story is intriguing.
I love drama. It's fascinating to see how people interact with others. Some of favorites include Late Spring, Merry Christmas Mr. Lawrence, Reservoir Dogs, and Breathless.
I do like to see a certain artistry in a film, though--some sort of auteurism, no matter how minor.
Can anything beat a good thriller? now I'm not talking about some of the ridiculous ones they make sometimes that assaults and insults your IQ but the ones that are mind twisting benders that you can't figure out.