I like:
music that makes me
feel something, whether it's happiness or heart-wrenching-ness. (I know that's not a real word, but I'm making it one.) (Arcade Fire, Jeff Buckley, Cold War Kids)
music that makes me get up and dance (Lily Allen, a lot of Belle and Sebastian--I like everything I've heard by B&S but not all of it is danceable, Old 97's, Franz Ferdinand)
music with good lyrics (Bettie Serveert [my favorite band], Elvis Costello, Peter Murphy).
music with lots of instruments that fit well together (The New Pornographers, Bettie Serveert again).
alt-country (Wilco, Old 97's, Neko Case--and I'm counting her as alt-country, Son Volt, Drive-By Truckers, Avett Brothers)
stuff that just rocks (Art Brut, Buffalo Tom, The Clash, Dropkick Murphys, Foo Fighters)
beautiful stuff (The Divine Comedy, Sufjan Stevens, The Delgados, Arcade Fire).
straight-up indie rock (The Decemberists, The Shins, Elf Power, Elbow, Modest Mouse)
good 80's music (Hoodoo Gurus, Psychedelic Furs, Echo and the Bunnymen, Depeche Mode, The Pretenders--I've been a Pretenders fan since I was seven years old, REM--been an REM fan since I was twelve)
However, I'm not entirely sure
why I like those kinds of music. They're just pleasing to my ears for some reason. (BTW, the above list is a mere handful of
all the bands I like.)