How well does Usyk do in these Heavyweight Eras: 60s, 70s, 80s, 90s

Within a 10 year span in his pro career Usyk managed to pull off being a force in both CW and HW. Personally I think Usyk would be very competitive in any HW era, although it's hard to know if his...

How well does Usyk do in these Heavyweight Eras: 60s, 70s, 80s, 90s