I have been reading about Harry Greb a bit thanks to this forum. He seems an almost mythical character. Extremely fast & a swarmer, unreal work-rate, excellent chin & endurance. Fought people at many weights, beat HWs way outweighing him. For years early then completely blind in one eye from a '21 boxing injury. Not a power puncher due to never getting set much, just a human windmill of punches with great foot speed. Gave Dempsey great workouts & the planned bout never came off. Fought everyone, beat many champions & defacto champions, never drew a color line. So take Harry Greb as his very peak at each division. Allow him no dirty tactics (though also robbed in some bouts). At his peak & fighting guys of the same size or division, from MW (as against Mickey Walker) through LHW, name the boxers in each division-SMW fine too-who would be favored against peak Greb. Oh, to keep it fair & accurate, you must consider real fight day weights, not later weight drained then heavier at bout time. Now he was supremely motivated, but clearly had outliar genetics. About 300 fights, even given the years, seems suurprising no film of him fighting. SHOULD he be compared to MWs in head to head competitions in many cases, since they were able to come in heavier during fights? After all we must consider equal conditions. WHEN did earlier weigh ins become the norm? Where do you place him in a P4P list? For them & for extra credit, what are the best guys who are modern CW size that greb would defeat, even, say, early 170's against guys fighting i10 or more lbs. heavier. Would he get Jones, Hearns, Holyfield, Hopkins? Most did not think he could take Rocky, though some gave him a chance... It is tricky since there were less divisions then.