#3 Eric Young
Eric Young is a veteran in the field of professional wrestling, and he has teamed up as well as feuded with the WWE Champion during their time in TNA (Impact Wrestling).
Eric was impressive in NXT and is even more impressive on the blue brand with his tag team - 'Sanity'. He is featured regularly on WWE programming, and it wouldn't surprise anyone if he moves out of Sanity in his quest for the WWE Championship.
When or how this will become a reality is for another day, but this feud will be all money.