No but seriously, I only responded that way because of the "prove me wrong" thing you posted. Consider it tongue in cheek. Or tongue between your cheeks, if you're bent that way.
The problem being that Cena is evidently a major merchandising boon. While I can neither prove nor disrpove that Punk or Hardy or DX could be a bigger merchandising draw if properly marketed in a feud with emotional investment, but it actually seems quite the long shot.