right now i'm probably happiest with Batum's play and contribution. forced into the starting lineup, he plays decent D and has done much better than I hoped he would. Would like to see him in later game situations.
I voted for Oden. I think Batum's been the biggest surprise, and Fernandez has played the most and contributed the most, but Oden has been the biggest impact player of the group when he's been on the court. Bayless has shown very high-level potential. Slightly off-topic, I'd rate their likely NBA futures as: Oden Bayless Batum Fernandez