3.Khabib: the fact he isn't easily mentioned in every GOAT discussion is ridiculous. Lost only 2 rounds in he's entire career and even them are questionable. Rarely ever showed weakness in a fight. Probably the most gifted and skilled MMA grappler ever. Many people blaming him for not having enough title defenses but forgetting the simple fact that quality is more important than quantity. You can as well get 200 wins against truck drivers like boxers do but it's really meaningless. Medals don't win you fights, skill does. Another complaint is that he's striking isn't good, but while it's not perfect it's super underrated as he manged to beat in standup the best UFC strikers. For the weight class, Gaethje is bigger than him. He would be a small welterweight.
2.Usman: it seems that he's personality is hes biggest weakness. The guy literally clearing the welterweight division twice in a row now. Many people say that a prime GSP would beat him but honestly if you do a deep analysis of them and their skills Usman most likely takes it. And again like i said before medals dont win you fights.
1.Demetrious: If the guy wasn't so short people would talk about him non stop. Maybe the most well rounded MMA fighter ever. Dangerous everywhere. Everything exactly by the book with extremely high fight IQ and much more skilled than other fighters who are regular on the GOAT discussions.