No Royal Rumble winner featured in a heavyweight title match.
Unified WWE title: John Cena vs. Randy Orton - the best two for this scenario.
Undertaker vs. Sheamus - Only active top level main event performer he hasn't faced yet.
Rey Mysterio vs. Kaval - Great showcase this would be.
Christian vs. Edge - Everyone wants this!
Divas title: Natalya vs. Melina - The two divas who I think get the most over with fans.
CM Punk vs. Daniel Bryan - wait til here to do this.
Money in the Bank match: Cody Rhodes, Ted DiBiase, Drew McIntyre, Alberto Del Rio, Kofi Kingston, MVP, Dolph Ziggler, Jack Swagger, John Morrison, R-Truth.
I can't think of where to put Miz. He would have already cashed in MITB, won title then lost it before Wrestlemania.