To be fair, You'd think United would be perfect for him. Who's his competition there? Cleverly? An ancient Paul Scholes? Guaranteed to play a big role.
Depends what we choose to do with Cazorla as to whether that'd be the same here, because Song and Arteta are good players, and then there's Jack. I want as many good players as possible in our squad, but I'd choose United if I were Sahin.