anyway...this is a tough one. There have been a lot of injuries over the years for Utley, and I'm not sure how much he has left in the tank. As a Phillies fan, I hope he can go another 2-3 years, but my gut tells me that he has maybe 1-2 years left of semi-elite fantasy play.
Choo on the other hand does pretty much everything Utley does, just at an abundant position. If Choo played 2B, Choo would be the second 2B on everyone's list. He has similar power and speed numbers to Utley, and usually hits better. Choo is a bit younger, but on a worse team.
This is a ridiculously strange dilemma. I guess I'd go with Utley only because of the position scarcity, but I still don't know. I'm not 100% on that keeper. That's a tough one.