Styles make fights. Golovkins only loss was the trilogy fight and he was 40 years old, and that fight was relatively close.
Without question, Golovkin's middleweight resume is paper thin. And whether you agree with it or not,(and I don't ),, he lost to Canelo. In my opinion this puts him down the line in ATG middleweight history.
There are a lot of B level guys but the way GGG dismantled and destroyed them like they were nothing is what was impressive. Even a guy like Steve Rolls who Berlanga had problems with GGG took him out like yesterdays garbage. Willie Monroe Jnr had just won the Boxcino tournament on ESPN and GGG mopped the floor with him. Vanes gave hell to guys like Andrade and Charlo then GGG wrecks him in 2 rounds. GGG made the usually tough Rubio look like a bum.