Video games, photography, art, cosplaying, voice actors, and trolling.
People who run around screaming like lunatics at cons, and the ones who don't shower. Oh, and your mother.
Doctor Who, Big Bang Theory.
Big Windup, Sgt. Frog, Gundam Wing, Baccano!, RIN ~Daughters of Mnemosyne~.
Blue Man Group, Anamanaguchi, Random Encounter.. and composers like Yoko Kanno.
Scott Pilgrim vs. The World, Endless Waltz, Super Mario Bros..
I'm putting my favorite video games here because I feel discriminated against as a gamer (there is no category for it). So... Bioshock, Team Fortress 2, Portal, SMW2: Yoshi's Island, Kirby Super Star, Zelda series, Pokémon series.
...what else is there to say, really? :)