#1 King Corbin
One of the most hated Superstars in WWE currently is King Corbin, or Baron Corbin as he was previously known. Corbin has been a good heel, generating massive amounts of heat from the fans, be it on social media or in the ring.
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He was the winner of the King of the Ring tournament last year, which was a surprise considering the likes of Chad Gable, Samoa Joe, and Ricochet were all in the last stages of the tournament and needed the push more than Corbin.
It seems that Vince McMahon and co. love Corbin's work and how effective he has been as a heel.
While the probability of Corbin winning the Rumble match is very low, WWE likes to pull off massive swerves to shock the audience which could very well happen here, making Corbin an even bigger heel.