Just for reference here are the fielding bible awards: link (Pedroia wins that one at 2B two)
Pedroia: No doubt he earns it. He is the best defensive 2B, period.
Ellsbury: Not the only choice, but definitely had a fantastic season defensively (Here's Speier's take)
Gonzalez: What's this his 3rd or 4th?
That's just my opinion of course.