Which heavyweights from the past would stand a chance against Anthony Joshua?

It's a trolling thread, isn't it?
There were so many heavyweight in the past who could beat AJ or even knock him out. Lewis, Ali, Frazier, Tyson, Bowe, Golota, Larry, Chevers, Louise, Holyfeild, and a lot more...
Even a hugger/holder like John Ruiz could beat AJ. I guessed.

 

This. Joshua is very green and showed it on the Takam fight. I wondered what Joshua would look like against an opponent that had mobility and seen he needs work with putting his punches together. Just like Povetkin did Ortiz would've badly ended Takam.

Marciano, Tyson, Frazier, and other greats from the past would've floored a guy like Takam and kept him there early in the fight. People also forget that fighters over 6'5" and over 230+ existed back in the day and many of them were more seasoned and skilled than Joshua was, but it didn't stop smaller guys from beating them.

Also, once heavyweights start getting over 245 their speed, mobility, and stamina start to suffer.

Marciano knocked out
Johnny Shkor 6'5" 220

Frazier beat
Joe Bugner 6'4" 220

Mike Tyson beat
Lou Savarese 6'5" 240
Frank Bruno 6'3" 245
Tyrell Biggs 6'5" 230
Tony Tucker 6'5" 220
Bonecrusher Smith 6'4" 230
Mitch Green 6'5" 225

 

Ray Mercer for one