Cormier - AKA, "Black Fedor," "Emilianegro', etc. Undefeated, heavyweight smasher with Olympic level wrestling who rag dolls men half his size. The man who was going to rag doll Jones, give him a beating 10X what Gust did, beat him so badly twice that he rids MMA of Jones for good and puts his life into a tailspin. The man who said if he wanted to take Jones down 100 times he would. The man who said Jones wouldn't get him down. The man who called Jones out for years from a different organization and a weight class above him. The man 65% of this board said would beat Jones and 30 pro fighter to 11 said would beat Jones.
And when it comes down to it, Cormier was beat everywhere and has his soul taken, basically quitting in the fifth round to try and get at least one take down when he knew he needed a KO. The man who, understandably, was left weaping in the hallway being consoled by his crew who just a day earlier tried to pick a fight with Jones' team in a hotel hallway before the actual fight.
Jones nuked Cormier's hype train In a way he will never recover from. This has to be at or near the top of the list.