The only genres that I am totally lacking in is classical (although I have some modern composers, Terry Riley and Steve Reich, and some post-rock, Sigur Ros, Mogwai, GY!BE) and world, but thats got nothing to do with my opinion on the genres, I'm just waiting for a point when I can throw myself into it fully.
I have roughly equal amounts of rap, metal, jazz and electronica.
Abba to Zappa
Feist to Faust
Slayer to Sleigh Bells
Fuck Buttons to Fucked Up
EDIT: Heh, this thread just made me go out and buy lots of world music on Amazon. Now looking into getting some classical...