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Robin, music, medicine, friends and family. Those are the basics.
Optimus God Damned Prime
Only the finest in hardcore death and thrash Metal: Slayer, Sepultura Testament, Ozzy, Black Sabbath, Dio, Iced Earth, Kreator, God Forbid, Cannibal Corpse, Cryptopsy, Hypocrisy, Demons and Wizards, Morbid Angel, Motorhead, Exodus, Hate Eternal, Krisiun, Nevermore, Amorphis, Bolt Thrower, Carcass and who could forget GWAR? In no particular order. And, of course, Wolfgang Amadeus Mozart. You wish I was kidding.
Star Wars, Lord of the Rings Trilogy, Jay and Silent Bob Strike Back, Clerks I and II, The Big Lebowski, Predator I, II and AVP, it seems I either watch movies that are funny or ridiculously violent. Go figure.
If it wasn't for Adult Swim and the Discovery Health Channel I wouldn't watch TV.
Sci/fi War: Crimson Tears, Soul Drinker, The Bleeding Chalice, Grey Nights, Dark Adeptus, Daemon World (All by Ben Counter). The Eisenhorn Trilogy, Ravenor, Ravenor Returned (All by Dan Abnett). All that far future, gritty, gory stuff. Star Wars books, LOTR. Dark Lord was a really good book about Darth Vader. It plugged up some of the glaring plotholes episode 3 left.
George Carlin for telling it like it is. Darwin for telling it like it is. Pen and Teller for telling it like it is. Lewis Black for telling it like it is. See a pattern? Oh and Darth Vader. He's just such an imposing character. All business, that guy.