Golovkin in 80s-90s.

[Fenster]

He could have beat all of them.

This is "era bias" on our part. We think the fighters from the 80/90s are much better than current ones (me too mostly) but it's probably not the case. Just like the fossils think all these great 80/90s fighters were pansies that wouldn't live with the dinosaurs from their time.

No, I think the 80s-90s MW division was MUCH stronger than the current one.

Compare

Toney
Nunn
McCallum
Jones
Hopkins

to

Cotto
Golovkin
Geale
Murray
Lee

I'm not saying it was the strongest MW division ever, but it was Murderer's Row compared to the current MW division.

Agree. But you've picked guys that established themselves as great fighters over a long period of time in several weight-classes.

It took Hopkins 10 years to be considered a top fighter, then almost another 10 to be a legend.

There are other factors as well - the supermiddle division being much stronger now than back in the day.