My first pick was actually going to be Bisping but with the TUF9 he probably wont even fight until the end of next year.
When i picked Thiago i was kind of hoping he doesn't wait for a title shot and try to fight another top contender like you said a rematch Fitch or i would like to see him fight Sanchez.
GSP doesn't wait long between fights anyway. they should be fighting around april even if he waits. If I were him I'd wait but keep busy training to prepare for the fight ahead.