I'm just going to jump out on a limb and guess that you didn't start watching MMA until post 2010.. George is the WW king.. Lets see Usman Defend the Belt 4 times like woodley has first and beat his own title reign, before trying to rank Usman over GSP.... Gsp was king for 7 years over 2000 days, 9 title defenses.. Usman meanwhile has 3 and little over 700 days.. he's look good give him that, but until he crosses 8 title defense's and carries his streak, there's no way in hell you can put Usman over GSP. It's a major case of recentism...
This ain't HW.. look at Ngannou he looks like the tougher HW ever, but until he proves that he is as dominant as a champion then the lead up doesn't matter as much as it does once you're actually on the throne. If Usman racks up more finishes and stays king for awhile he has a chance to pass GSP... lets see if he can finish Jorge.. cause most bets are that Usman wins by slopping foot stomp decision, not sure how you put that above GSP anyways lol.. I think Jorge beats Usman this time.. People try to throw out title defenses but the truth is that your mind can only stay so sharp for so long, and fighting through that mental fight to remain on top is difficult, which is why title defenses matter above all except an undefeated record.. or low losses. but it's still too early to rank Usman as the greatest... he's headed in the right direction though.