#7 Baron Corbin
Baron Corbin has been the most hated heel in WWE for the past one year. There was an entire change in his character when he became the General Manager of RAW last year. Even though he doesn't hold that position anymore, Corbin utilized it to the fullest to gain heat from the fans.
His recent run proved to be a good one, as Corbin retired Kurt Angle at WrestleMania 35 this past April, followed by a much-hated feud with Seth Rollins for the Universal Championship.
Last year, Corbin had a lengthy feud with Finn Balor, in which Corbin used his power as the Constable to destroy Balor's opportunities on RAW. It finally led to a SummerSlam match between the two in 2018. Balor had such a strong sense of dislike for Corbin, that he brought out The Demon to defeat him at the event.
Recently, Corbin has been one of the top heels in WWE. The way he was going, many fans thought that he would be doing something major at SummerSlam this year. However, that's not the case. Corbin disappeared all of a sudden, after getting a vicious beat-down from Seth Rollins at the Extreme Rules pay-per-view last month.