With Emmanuel Steward in his corner Wlad would not have lost to Fury and Joshua. Unlike Vitalli, Wlad's mentallity was not up to the level of his other attributes. An Emmanuel Steward trained Wlad who had Steward in his corner is a top 4 heavyweight and would likely beat any heavyweight in a head to head except Ali.
Any version of Wlad still loses to Fury So my theory that Fury is the Goat aligns with your hypothesis I can name many heavies better than Wlad than 4 though... Louis, Fury, Ali, Lennox just off the bat.
