#2 AJ Styles
While it might seem odd that I'm suggesting John Cena face the same man he is fresh off feuding with, there is no denying they are remarkable rivals. Each of their encounters has been absolutely exceptional, so honestly, who would be against them going at it one last time?
The last time we saw them square off, Cena conquered Styles at long last to become a 16-time world champion. At Elimination Chamber, they will be opponents yet again, and there is a decent chance Styles could come on top with the title in tow.
If this does indeed happen, or even if Styles costs him the championship, having the two rekindle their rivalry at WrestleMania would be the best use of both men. Perhaps putting them in a stipulation match of some kind (Iron Man, anyone?) would allow them to blow off their feud in grandiose fashion.