Only thing against Fedors' grappling in my opinion, is that he does have submission wins, but he never had any notable against opponents with a BJJ blackbelt, which says something. Also, Fedor seems to be mostly dependant on his explosiveness which seems to have all but disappered at LEAST half a decade ago, when he's put on his back, and doesn't seem to be any good at preventing someone from passing his guard. Fedor obviously has a better Judo credentials, not many in this history of MMA do, you can probably count in one hand, and Khabib has no notable credentials in wrestling or Judo. Khabib on his back looks like he's comfortable there, but when you look at Fedor on his back, it just looks like he's laying there and only really looking to explode out of there or sweep, unless someone's in his guard and is not a black belt in BJJ. Fedor obviously accomplished a lot more in Combat Sambo, but even to this day, for me anyways, as it has been back when there weren't all these new breeds Russian guys in the UFC and MMA, there weren't many elite combat sambo guys. And the world champions in Combat Sambo better than Khabib has really struggled outside Fedor and that russian guy, I forget his name. Fedor's GNP is a lot more vicious, but Khabib does seem to have a better control on top, and just riding a guy out. At the end of the day, Khabib really looks more like a wrestler, and Fedor looks more like a Judo guy, though Khabib also does mix in Judo throws here and there chaining them up with his wrestling, though lots of throws are also in wrestling too. I always believed in Fedor being a GOAT, before GSP, but I gotta say, Khabib looks more like a competent grappler of the two, with Fedor being a better judo guy. When you watch Fedor's recent sparring in grappling, my jaw drops because this guy looks like he never wrestled in his life.