Here's Smithy's list of potential winners and why:
Chris Jericho - just returned, said something about the world ending this Sunday. Oh and he's ace.
Randy Orton - Home town advantage. Returning to action. Possible winner.
Punk/Bryan - As stated above a current champion could win should they lose their title match. Reason being WWE have made a big point of saying this rumble is open to ALL WWE superstars. So champions could enter, divas too...
Wade Barrett - giving him a decent push at the minute.
The Rock - ok, a little my dream here...but he wins the Rumble, Cena is champ by mania, and they have a title match...hey it could happen!!
The Undertaker - Seems about time he returned.
John Cena - Just because it would annoy me.
Brodus Clay - imagine the dancing if he won!!
Other possibles: Sheamus (Kopite), HHH, John Laurenitis, Cody Rhodes, Alberto Del Rio, Kane.
In fact it's quite good that it's not obvious.