I met Mauresmo last year at the Pilot Pen open (#1 in the world at the time)... she was pretty cool, so I've been following her lately.
I always kinda liked Hingis too.
Other than that, I'll watch if Sharapova or the other cute Russians are playing

.
Like Kournikova, I don't think the Williams sisters take the sport seriously enough for me to want to cheer for them.