Re: Sam Langford v Dick Tiger
I'm confident that Tiger would be able to deal with Langford's power. Rubin Carter and Florentino Fernandez were dynamite hitters but couldn't dent him. Tiger also had no problems dealing with the roughness of men like Gene Fullmer or Henry Hank. Though Langford was likely a better puncher (speed, accuracy) than these fighters, I don't think there would be a knockout either way.
Bob Foster made short work of Tiger, but Foster was Foster. A harder hitter than Langford in my opinion - just with a different style (Foster's physique and attributes meant he had to back off against heavier, more formidable men, and couldn't throw as much into his punches as when he was facing watered-down heavyweights; light heavyweights). Langford, as a short man, was often forced to press the action, and could therefore generate all the power he needed as he marched forward. I had to make this point evident before someone came along and said 'Foster doesn't have the same heavyweight knockout credentials as Langford.'