#4 Aleister Black

Aleister Black has defeated Buddy Murphy on three separate occasions and while they were all barnburners, they fulfilled another purpose as well. In fact, between how much Black was able to get the audience behind him and how dominantly he has been booked, one can imagine that he will be a force to be reckoned with in the immediate future.
As if that wasn't enough to prove how WWE is trying to protect him right now, Cagesideseats.com's rumor roundup claims that the company has something big for Black planned and that it could come sooner rather than later. What exactly that is remains to be seen, but it's worth noting that his feud with Murphy is probably done.
With that being said and Black building up quite the winning streak right now, expect him to parlay that into a memorable run in the Royal Rumble match. Heck, with WWE originally wanting to put Ali in WrestleMania title picture last year and the company eventually picking Kofi Kingston to do it, Black could end up going very far here.