#3 Chris Jericho
The Ayatollah of Rock 'n' Rolla has previously stated that he wasn't a fan of Triple H during his first run in WWE, and vice versa. Jericho said that his match against The Game at WrestleMania 18 was one he didn't like one bit. Jericho has also talked about how he had a heated debate with Triple H during the production of The Festival of Friendship.
Also read: 5 backstage incidents that made Jon Moxley leave WWE
Now, all these years later, Chris Jericho is a megastar in All Elite Wrestling. He is all set to compete for the AEW World Title and his contract will see him wrestle on AEW TV for years to come. Ever since AEW arrived, Jericho has been taking subtle shots at WWE, like the one where he sarcastically praised Brock Lesnar's MITB win.
Jericho's past issues with Triple H and his move to AEW might raise an issue if he decides to return to WWE someday, wen Triple H is at the top. There's no doubt that Jericho will be inducted into the WWE Hall of Fame in the distant future, but as far as his in-ring WWE career goes, we might never get to see him compete inside a WWE ring ever again.