Islam Makhachev and Khabib Nurmagomedov will always be compared to each other. In particular, Makhachev will always be compared to Nurmagomedov, who, in a sense, came before him, despite both men being contemporaries. Both are among the greatest fighters of all time, but fans still regard 'The Eagle' as greater.In fact, there's a small contingent of fans who even consider Nurmagomedov to be MMA's greatest-ever fighter, point blank. It's a difficult claim to support, especially with other fighters having accomplished significantly more than he has. The question, though, is where Makhachev stands?Does a welterweight title win rank him ahead of his mentor in the eternal GOAT debate?Islam Makhachev vs. Khabib Nurmagomedov: Comparing their résumésThe most visible difference between Islam Makhachev and Khabib Nurmagomedov is that one of them is undefeated. That, of course, is Nurmagomedov. However, being unbeaten means very little in the grand scheme of things, especially when Nurmagomedov's strength of schedule is taken into account.'The Eagle' spent a considerable amount of time fighting subpar competition. When he was 14-0, for example, he faced Vadim Sandulskiy, who was 0-0. For his 12th fight, he faced the unremarkable Ashot Shahinyan, who was 0-2 at the time. And for his 16th fight? He faced a 27-22 Arymarcel Santos.Thus, there's weight behind the argument that Nurmagomedov has a padded record. He only began fighting elite competition much later on. So, what are his best wins? Rafael dos Anjos, Michael Johnson, Edson Barboza, Al Iaquinta, Conor McGregor, Dustin Poirier, and Justin Gaethje.Dos Anjos and McGregor are former undisputed lightweight champions, while Poirier and Gaethje are former interim lightweight champions. Johnson, though, is an abysmal 23-19 (now 24-19). Barboza is a dangerous, but deeply flawed fighter at 24-12, and Iaquinta was little more than a gutsy overachiever with a 14-7-1 record.So, what of Makhachev? His best wins are stronger than Nurmagomedov's. He has beaten Arman Tsarukyan, Dan Hooker, Bobby Green, Renato Moicano, Charles Oliveira, Alexander Volkanovski twice, and 'The Diamond' as well. It is a run of form that eclipses the competition 'The Eagle' faced.Nurmagomedov never fought a strong wrestler with tremendous physical strength and brutal power like Tsarukyan, who is 22-3 and the No. 1-ranked lightweight (now #2) in the world. Oliveira is among the greatest lightweights of all time and a former undisputed champion. Volkanovski is an all-time great and was P4P #1.Even the cast of Hooker, Green, and Moicano is more impressive than Iaquinta, Barboza, and Johnson. There's an argument to be made that Makhachev has already surpassed his mentor's résumé. He has the longest-ever lightweight win streak, the most title defenses in the division, and the UFC's second-longest win streak.It's arguable that he's already ahead of Nurmagomedov, but a welterweight title win over either Belal Muhammad or Jack Della Maddalena would rank him well clear of 'The Eagle'. It would not only be an accomplishment his mentor never had, but also one he never dared pursue.