#2 Finn Balor
Believe it or not, Finn Balor was actually the one that delivered the death blow to John Cena before he was eliminated from The five on five Survivor Series elimination match and while WWE didn't allow Balor to pick up the pin himself, the moment could have been a way to lay the groundwork for later on.
With that being said, John Cena versus The demon king would absolutely set The WWE landscape on fire and also pit two of the company's biggest fan bases against each other. Not only that, it would even be a thrilling matchup that pits Cena's do or die offence against Balor's high flying arsenal of breathtaking moves.
Balor really needs a win here, especially since he has been floundering on the mid-card for quite some time now, and what better way to do that than to give him a win over old big match John.