Can I just add a note of caution here.
Toney at 160lbs wasn't the finished article. He was prone to running out of gas, lacked a bit of nous and experience, struggled with the weight and generally wasn't quite as slick or excellent as we have him in his mind's eye. Toney's peak was likely his time at 168 and 175lbs... although even then his weight issues and lackadaisical attitude to conditioning hindered him.
160lbs Toney is the Toney that was held to a draw by Mike McCallum (although I had Toney narrowly winning), only just got past Reggie Johnson, was a long way down on the cards against Nunn before catching him late and most shockingly of all should have lost (and Toney admits he should have lost) to Dave Tiberi... and Tiberi is a far lesser boxer than Golovkin.
Is Golovkin a stylistic match to any of those guys? Not really. But he has shown accuracy, power, a consistant workrate, the willingness to attack the head and body, a reasonable chin and effective punch selection. Even in the bouts Toney won at 160lbs he was getting caught with shots you wouldn't expect him to and slowing down in the latter stages. I could easily see Toney going ahead early but then fading late, allowing Golovkin to take over.
That said, Toney at 160lbs was still a versatile fighter. We tend to think of him these days as pretty much exclusively a counter-puncher bit back then when he was more mobile he was perfectly happy (and able) to walk opponents down and force them backwards. We're yet to really see how effective Golovkin is when he can't come forwards and what few signs we have haven't been that positive... his offence tends to disappear. If Toney can catch Golvokin with a good counter (and Golovkin's defence doesn't match his offence right now) and immediately step on the pressure I can see life being very hard for Golovkin.
