#1. Dean Ambrose
Dean Ambrose was one of the most entertaining stars of the current generation and much of this entertainment came whilst Ambrose was embroiled in a feud with his former WWE tag team partner Seth Rollins.
The two men collided at Elimination Chamber back in 2015 for the WWE World Heavyweight Championship. Ambrose thought he had won the match and the WWE Championship before the official announced that because of an earlier infraction from Rollins, the match had actually ended via disqualification which meant that The Architect retained his title.
Ambrose had seen enough and decided that he had deserved to win the Championship, so he took the title that wasn't his and left the arena. This then led to a match between Ambrose and Rollins at Money in the Bank the following month, where Rollins was able to come out on top and regain his WWE World Heavyweight Championship.
Ambrose refused to give Rollins his Championship back, and instead opted to play pranks on his former Shield tag team partner whenever he was able to.