Wrestlemania XXVII Predictions

I feel like Wrestlemania XXVII is going to be something special and the Rock isn't just going to sit on the sidelines. How about after Cena wins the title back, he challenges Rocky for ultimate all-time supremacy? The publicity tomorrow would be enormous and The Rock does have a movie coming out. Just a hunch. Here are my predictions for the big matches:

Undertaker def. Triple H
Alberto Del Rio def. Edge (with possible Christian screwjob)
John Cena def. The Miz
The Rock def. John Cena

If I nail all four, I am the best there is, the best there was, and the best there ever will be.