You really need to refrain from being lazy, because that video actually undermined your own argument and endorsed some of the claims I’ve regularly made! It's backfired my friend!
Please try and answer any of the following questions in the affirmative:
• How many people in that video you posted actually saw Harry Greb fight?
• How many snippets of Harry Greb’s bouts did that video show?
• Is the video correct in claiming Harry Greb competed in 294 bouts?
• Is the same video correct about claiming that Greb competed in 299 bouts?
• Is the video correct in claiming that Harry Greb only lost eight times?
• Is the video correct in claiming that Harry Greb was blind in one eye for the vast majority of his career?
• Is the video’s assertion of Harry Greb initially suffering a detached retina, due to being thumbed in the eye during the 1921 Kid Norfolk fight, supported by newspaper articles published around the same time?
• Would it be wrong for me to say that those commenting on Greb’s fighting style, were simply quoting the words of unnamed writers?
• Would it be wrong of me to claim that Harry Greb passed away more than a decade prior to Bert Sugar’s birth?
• Would it be wrong of me to say that Billy Conn’s opinion of Greb’s fighting style (as quoted by Bert Sugar) should be deemed as being unreliable, because the American fighter was only eight years of age on the date of Harry’s final bout?
• Would it be wrong of me to claim that several commentators in that video repeatedly used vague non-committal words like reputedly, allegedly, reputation, surmised etc?
• Is anyone able to provide a list of at least 250 bouts that Harry Greb competed in?
• Is the video correct in claiming Harry Greb was 32lbs lighter than Gene Tunney during their 1922 bout?
In terms of historical contribution to the sport of boxing, Harry Greb is definitely an all-time-great, but it’s categorically impossible for any human being to possess an educated opinion of his pugilistic fighting style, with sufficient knowledge to compare him to other legendary fighters in order to determine the potential outcome of any fantasy bouts.
We simply can’t make pound-for-pound or "whom would beat whom" comparisons for fighters where there isn’t any reliable eyewitness accounts or video evidence. Since no one can apply the proverbial eyeball test.