Lets compare Usman and Izzy, and see who is on more GOAT status, as they are both in similar positions yet seem to be fighting for very different reasons. Both are probably the second best title holders in their divisions, after GSP and SIlva. Both are on a similar number of title defences, and are in a position to defend a lot more, possibly reaching GSP and Silva numbers, or very near. But so far one has fought all of the top contenders in his division, whilst the other seems to be avoiding them. One is currently building a padded title defence, whilst the other is fighting all the top worthy contenders and building and unpadded one. If Izzy fights Rob next and defends, he will be on a 4 title defence, the same as Usman. Both of them will 2 defences against the same fighter. The only issue being, one of them is ranked number 1 in their division and the other 7. That already sets who is the candidate for being the GOAT of this generation, out of those 2.