too danged many excellent options...
EDIT: Seriously has anyone counted the number of Hugo Award winning novels in that list? Not just that pretty much all of the authors are Hugo Award winners but the novels alone...and almost all are in my TBR backlog.
Ended up with Wind-up Girl because I have been on a total cyberpunk/dystopian kick this year already and it's an author new to me. Plus this story sounds fun. It was between that, Scalzi & Vinge for me...