Wasn't this supposed to be a "Hair VS Mask" match at one point? If that was still the case then I would give Rey the win since he's never losing that mask. Since the only stipulation is Rey having to join Punk's stable if he loses, then I say that's what going to happen. Punk will probably win because Rey can feud with the Straightedge Society while being a member of it who was forced in. The match should be alright, probably nothing groundbreaking or awesome though since the feud will probably continue after Wrestlemania.
DAGGER'S PREDICTION
CM Punk will defeat Rey Mysterio.
DAGGER'S PREDICTION
CM Punk will defeat Rey Mysterio.