#4. Brock Lesnar
This may sound crazy, especially given that Brock Lesnar has been Universal Champion for all of the last two years minus a couple of months in between late August and early November 2019.
In fact, we're going to go on a limb and say that this even extends to UFC, because Brock Lesnar is expected to get the next UFC Heavyweight Championship opportunity against Daniel Cormier.
Now, we understand that Cormier wants one last major payday, but the fact of the matter is that Lesnar doesn't deserve the title shot. Even in WWE, Brock Lesnar should not have gotten the title shot at Crown Jewel. Naturally, the circumstances saw Reigns removed from the match, but it's a real shame that Brock Lesnar won the title again, because he's essentially held the championship hostage since then.
Hopefully, WrestleMania 35 will see the end of Brock Lesnar's dominant reign and the dawning of a new era.