"uhhh GGG was ducked a lot and he hit hard. He was robbed by Canelo and needed split decisions over Derevyanchenko and Jacobs. He beats Robinson by KO". ^^^^ Read that in a slow, unaware, Chad voice. Robinson beats him in a war or in a boxing match. He's taller, quicker, smarter, a better puncher, more skilled and tough enough to take GGG's, or anyone's, best. I see Robinson circling and jabbing, and letting GGG try to cut off the ring. Whenever Golovkin gets too close, Robinson's starts bringing a right over the top of GGG's much slower jab, and then adds in a left hook or two. After a few rounds of boxing, a few more rounds of the scenario above, GGG probably shuts down or shells up. If GGG has get down to 160 in the same day weigh in era, then Robinson is fully capable of stopping him.
In seriousness GGG is and was very good, but I don't really see what advantage GGG has over Robinson other than weight, so I have a really hard time seeing him winning.
Robinson's defence wasn't the best. GGG could probably get him with the jab consistently, and possibly go to the body well on the inside. But that's if he can get there. Robinson wouldn't walk GGG down IMO, and he was so much better at controlling range and space, and so much quicker, I can't see GGG using them to his advantage. They're not big advantages anyway.
SRR also has a slight height advantage and 2 1/2" of reach on him. GGG is a bit of a T-Rex he has short arms for 160.
The problem with fantasy match-ups involving Golovkin is that he fought nothing close to an elite fighter in his prime, looking less impressive and faltering in his later years, against more reputable opposition. Matching him against Sugar Ray Robinson stretches the imagination too far. So, I can't see any likely scenario, in which GGG looks like a winner, i.e. barring an accident, corruption or some other confounding variable arising, Golovkin loses. And, all things being equal, whilst it wouldn't be a cakewalk for SRR, I don't see this being a particularly difficult assignment for Robinson, either.
The fight would be an impressive display by Robinson if it was in his era and GGG somehow had the modern benefit of a relaxing schedule with a possibly worn, tired or injured Robinson entering the ring I believe it would be competitive and close till GGGs plodding rhythm gives and surrenders the moment a close UD12 for Sugar Ray in my eyes, but in fantasy boxing I see it as a TKO in the late rounds with GGG too worn to fight with the ref saving him unable to fight back but not hurt.
Honestly lads, I can't see this ending anything other than really, really well. With all of you biased little shytehawks back in your boxes with the lids nailed shut.
They could both be pretty hittable, GGG has a real tendancy to neglect defence and rely on his chin too in a lot of his fights. I'm not saying GGG wouldn't give a good fight, or it'd be a total shut out, I just don't see any basis for favoring him.
GGG in his prime rehydrated to 170-173lbs. Robinson could come in at 160lbs or just a little under after rehydrating. I think that's where GGGs advantages end though, as SRR will control the range and still land significantly when they are up close. In the last 5 rounds (assuming a 15 rounder) SRR would up his output after having attacked the body earlier and win it on the cards comfortably.
The kind of likely weight variance here is not enough to bridge the skills gap, which is really quite a chasm - night and day.
Plus, Golovkin isn't really a weight cheat. He's as a natural a middleweight as they come. Golovkin would have had zero issue making 160 with a day-of weigh-in. He's not bigger than Robinson by a wide margin. He struggled with midget ass Canelo, and Robinson had a good 3-4 inches of height over Canelo, and a longer reach.