He absolutely flattens Minter no question about that, Antuofermo would take him a few more rounds but still gets ironed out. Hearns and Hagler ? Who knows? Hearns was a magnificent fighter but his chin like most people's was not made of Iron and if Golovkin could get inside quick enough, has more than enough power and ability to test it. Hagler could be a fantastic war, but until people step up and fight him, it's hard to put Golvkin in the same class as the Motor City Cobra and Marvin. He might be be better, although he looks a bit more vulnerable defensively, but it's not really easy to judge yet.