How so? Burley was the complete package. He could box, he could punch, he had excellent defensive skills, and he was quick. He also possessed an iron chin, as he was never knocked out in his career. The late great Eddie Futch compared him to Roy Jones, Jr. style-wise. He knocked down the great Archie Moore 4 times when they met, I am sure he'd to that to Hearns, who's chin was shaky.
Burley beats Hearns because he closes the distance so quickly, unexpectedly, and he comes with power. It's a fast snapping motion with real shine on the shoe. It's a knockout in my opinion. There isn't even that much between them in terms of reach, and what there is would just be torque waiting to happen. If I was picking one guy to get this job done it would be Burley. And I agree with heehoo that it would look pretty one-sided.
Burley is one of few with a chance of pulling off the victory over Hearns, but at the end of the day Hearns still holds most of the advantages.
Hearns was an absolute monster at 147. That's where he showed his best form and consistently gave his best performances. At 154 he didn't show quite the same fire and intensity, and at 160 and upwards his legs and reflexes were slowed by the added weight and he was much too hittable. Robinson and Leonard are the only two welters I think I would back with certainty to beat him. Most others would have some terrible size and/or stylistic disadvantages to overcome.
Burley in real life has lost to guys who had little or no experience at the highest level - ie: Jimmy Bivins, Ezzard Charles(twice). Bivins in fact only had about 10 or so fights when he whupped Burley.
Which of their losses do you think were "off nights," and how do you come by determining that? Could Hearns' losses to Leonard or Hagler be put down to "off nights" as well?