#3 Sami Zayn

The reigning WWE Intercontinental Champion, Sami Zayn, has evolved a lot on SmackDown in the last few months. He is no longer the underdog babyface who has the fans behind him. In fact, he is a type of Messiah in his own right, as he has not only rejuvenated his own career but also he has helped save the job of Cesaro, who wasn't even assigned to a brand in the Draft last year.
Just like Seth Rollins, Zayn has done a splendid job as a heel. Because of his improvement, WWE rewarded him with the Intercontinental Title last month. He can irritate the audience with his heel work, as he is absolutely outstanding on the mic.
Look who just shut down all of Tony Khan's critics! More HERE.
Since he is an in-ring technician also, WWE can move him to RAW during the Superstar Shakeup or WWE Draft and have him take Seth Rollins' place. The Architect's absence offers a golden opportunity for the creative team to move the Canadian Superstar to RAW and have him take over the business.
Sami held onto his IC Title at WrestleMania 36, and as a champion with a chip on his shoulder, he can become the top heel on RAW, working along with his allies Shinsuke Nakamura and Cesaro.