I'd prefer someone from the 'undercard' to pick up the win over a main event guy, like have Bray Wyatt come in and beat Miz in a debut match, setting up a feud for a couple of months. But thats just me.
If I had to pick an established midcarder, I'd actually go for Otunga over Sheamus. He's been used as a jobber for a while now, but in his past few appearances in the WWE he seems smoother, less botchy, sells well, and could be due for a bit of a push in the future. And after all the times he's taken White Noise, Cloverleaf, and Brouge Kick...I feel its only fair he gets a win.