1. Roman Reigns

Analysis: When you get the distinction of being the Most Hated Wrestler of Pro Wrestling Illustrated, then it is without explanation that you need a full revamped.
Take the case of Roman Reigns. As good as he is, Reigns has been a failed experiment and WWE should move on from him instead of putting him in main events. While he has continued to rise into the occasion providing kids of all ages a Cena-like character, the Big Dog hasn't generally received positive reviews from the rest of the WWE Universe.
WWE's huge mistake with John Cena revealed - Watch Here!
And the hate just continues to grow against The Big Dog as fans reportedly headed for the exits just in time for the recently-concluded Backlash main event between Reigns and Samoa Joe. While he was able to finally rebound from a string of losses, his victory against Joe did little to sway the WWE Universe back on his side.
Suggestion: 3 words. TURN ROMAN HEEL!
Paul Heyman's downfall need to be studied - Check!