Saad was a beast in his prime. True, he didn't have much defense, but he was basically impossible to stop in his prime. Spinks and Braxton may win but it's highly competitive if we're talking the 78-80 version of Saad Muhammad. Even if Spinks and Saad had met in the summer of 81, instead of Spinks/Mustafa, it would have been a great fight. I hardly ever agree with Morlocks, and, for some reason, he feels threatened by me being a Saad Muhammad stan, but I will kind of agree with him here.
I agree Lockridge is vastly underrated. My list which admittedly is based on the 80s and 90s and is just what I see on this forum would be: Frankie Randall Rocky Lockridge Riddick Bowe
You're saying a proper heavyweight couldn't knock out Nigel Benn with several flush, unanswered punches against the ropes?