#5 Cesaro

Cesaro has won over 7 championships in his main roster run in WWE, which includes 6 Raw Tag Team Championship reigns. He also won the Smackdown Tag Team Championships with Sheamus on the 1000th episode of Smackdown Live. In addition, he had a lengthy US Championship reign.
Cesaro was surprisingly split from Sheamus during the Superstar Shakeup, due to the latter's injury, ending the Bar, and setting Cesaro on course for singles competition.
Since coming to Raw, Cesaro has been given a new theme, in addition to better and deserved booking, winning over the likes of Cedric Alexander and Ricochet, as well as putting up a great fight against Rey Mysterio.
Unlike most of the Superstars on this list, Cesaro is the only Superstar who has won the US Championship, further increasing his chances for winning the championship. Not only will winning the US Championship further boost his current momentum, but it will also lead to great potential match-ups with fellow mid-carders.