joanna newsom all the way. i don't know if it's cuz she's a physical bombshell, she makes music that gets me in the guts, or if i'm particularly attracted to people who may very well have asperger's. either way, to me, she's the hottest lady on the planet.
EDIT: just thought about it, and i think it's all three of those reasons, as bjork comes in as a close second.