#1 Brock Lesnar
This may come as a shock. Unlike the other entrants on this list whose careers are mishandled by WWE, Lesnar is someone whose presence is detrimental to the sport. The man has openly admitted that he wrestles only for money and has no love for the business. He appears sporadically and wrestles only a few PPVs throughout the year.
Yet, he has been handed the WWE Universal Championship. The unavailability of the champion on weekly basis hurts the prestige of the title and it also takes away the opportunity from many rising stars to put a feather on their caps.
A top AEW star just called one of his colleagues 'spoiled' and 'narcissistic' HERE.
It is quite well-known that Lesnar is bound to enter a program with Roman Reigns and drop the title to him on Wrestlemania. This has had a major impact on all the matches he had (and will have) prior to Mania. His matches are often short and their outcomes are predictable. Top stars of WWE like Braun Strowman, AJ Styles, and Samoa Joe have been fed to the beast only to prepare him to be slain by the new poster boy of WWE, Roman Reigns.
After he loses to Reigns, it might be difficult for Brock to carry on as the undefeated monster and will likely fall out of flavor of the WWE universe. Given his strong objection to being a full-time wrestler, Lesnar should only remain on the roster if he agrees to put over younger talent.