#3 Cesaro
The Swiss Superman has been part of the WWE's Tag-Team division for quite some time, with his partner Sheamus, forming The Bar.
With the Celtic Warrior reportedly injured at present, Cesaro is once again being given a run as a single's competitor. He made an appearance on RAW and beat Cedric Alexander in a match, which hinted another potential push.
However, he was left out of the Men's Money In The Bank ladder match which means that the writers are just not ready to go with a big-push at present. He will have to possibly build his single's career from scratch and win over the fans once again, a.k.a The Cesaro section.
Only time will tell how much faith the company still has in his capabilities, as it was Vince who had pulled the plug on his single's push earlier in his career, as he did not feel that Cesaro had the mike skills to back his in-ring ability.
Despite that, anything is possible in the WWE and Kofi Kingston's current push is the best example of that.