Football, the web, working out, TV (24 especially), movies, etc.
Martin Scorsese seems like a nice guy - and he can write about the nastiest people. It would be interesting to see where he gets his inspiration from. Also, Chuck Palahniuk, the author of "Fight Club" seems demented enough to be a good person to meet.
A little reggaeton never hurt anyone; I'm also into rock and rap.
The Departed, Godfather I and II, Goodfellas, Carlito's Way, Scarface, Heat (basically any Pacino/DeNiro combination), Fight Club, Sin City, Kill Bill 1 and (especially) 2, Pulp Fiction, etc.
24 - it stretches realism a lot, but it's a blast to watch all the cliffhangers and the twists. The Sopranos - the best show on TV. It's tightly-written, arcs sometimes take seasons to complete, and the characters are evil, but with motives.
Survivor, Haunted, Fight Club, Diary, Invisible Monsters and anything else Pahlaniuk writes.