Regarding music, well... I'm an open guy, but I like alternative rock slightly more than any other genre. But it doesn't mean I hate them all!
I like the following artists: 50 Cent, Alicia Keys, Dido, Eminem, Kanye West, Joe Budden, Jay-Z, Wyclef Jean, Delta Goodrem, The Veronicas, Vienna Teng, Yuki Hsu, Acceptance, Mobile, Anberlin, Autopilot Off, Eskimo Joe, The Killers, Muse, NOFX, Enter Shikari, DragonForce, Zebrahead, The Mooney Suzuki, Ayumi Hamasaki, various BEMANI artists, Eiffel 65, Bloom 06, DJ Sasha
In terms of gaming, I love all kinds (except MMORPG's & RTS's). But, the ones I like are fighting games (like the "Super Smash Bros." series, including Brawl and "Marvel vs. Capcom 2") and I guess... FPS's ("Halo", "Medal of Honor", etc.)
With respect to anime, well... While I like some of the mainstream ones (Digimon, Sailor Moon, Melancholy of Haruhi Suzumiya, etc.), I'm also interested into ones that were not known (Kare Kano, Yes! PreCure 5, etc.)
Tai & Sora (of Digimon Adventure) is currently my OTP. But, that's not to say I like other pairings, too (at least in Digimon). They include T.K. & Kari (Digimon Adventure/02), Takuya & Zoe (Digimon Frontier), Ken & Yolei (Digimon Adventure 02) and Joe & Mimi (Digimon Adventure/02)
I also like Yukino/Arima (Kare Kano), Sakura/Syaoran (CCS), Himeno/Hayate (Pretear), Nozomi/Coco (Yes! PreCure 5), Natsume/Mikan (Gakuen Alice) and... Kei/Hikari (Special A).