Just about anyone who becomes champ. As soon as they are champ the UFC ranks them in the p4p list and they are already being considered the best in the weight class in the short history of the UFC. That said, the stand outs are for sure Rousey and McGregor. The talk behind them got into the mainstream and McGregor was awarded with that sham of a fight with Mayweather. Their egos were overly inflated and their fans were like cultists.
Khabib is muslim which is why Conor insulted him for being a muslim. An ethnic Avar hailing from the Republic of Dagestan in Russia, Nurmagomedov is the first Muslim to win a UFC title. He is the most-followed Russian on Instagram, with more than 26 million followers as of December 2020.