Both terrified multiple weight divisions, both were ducked by a LOT of men, and both were willing to fight anybody. Who’s more badass?
Greb's 44-fight run in 1919 has to be the single most badass feat in the history of the sport. He crammed an entire HoF career into a single year.
I was going to make mention of this myself. Langford has some almost mythical accomplishments of his own & a case here, but that run is as superhuman as it gets! Greb gets my vote.
Langfords KO percentage was over 25 points higher fighting at HW. Also his career was nearly twice as long.
They both top my list p4p. Greb edges Sam a bit based off his overall success the 45-0 win streak in 1919 he fought at least 5 years with one eye and he had almost as many fights in a much shorter career.