I chose Death. It was really close between Death and Thrash, but I feel like more of my favorite bands are death than any other subgenre, so I went with that. Black would probably be third, but I really do like all of them to a certain extent. Grindcore would be right up there with death and thrash if it were on the list though!
2/17 Poison Idea
4/16 Napalm Death