#1 Chris Benoit
WWE fans born in the 21st Century might not remember or know Chris Benoit. The late professional wrestler was regarded by many as the greatest wrestler of all time, including industry journalist Dave Meltzer, who considered Benoit "one of the top 10, maybe even the top 5, all-time greats", before his death in 2007 caused by suicide.
Benoit has won multiple championships around the world and even headlined WrestleMania XX, where he won the World Heavyweight Championship. He was also booked to win the ECW Championship but he wasn't present at the PPV.
Benoit committed suicide in 2007 by hanging himself on his lat pulldown machine. WWE cancelled the scheduled three-hour long live Raw show on June 25 and replaced the broadcast version with a three-hour tribute to his life and career, featuring his past matches, segments and comments from wrestlers and announcers.
However, once the details of the murder-suicide became apparent, WWE quickly and quietly began distancing itself from the wrestler by removing merchandise and no longer mentioning him. Since then, WWE has never mentioned Benoit ever again.