Hmmm, while I agree that Duran really did fight everyone he could, and others ducked him, I can't really recall Leonard ducking anyone? In fact, when he was coming up people were saying he would be protected, so he responded by taking on Andy Price, who was at the time considered a tricky fighter and tough customer.
Here's the result.
The only fighter I can think of that Ray avoided was Marvin Hagler in their prime. But Marvin was a middleweight at the time, and Ray a welter. Ray also had the detached retina for a while that concerned him, and eventually did take Marvin on (though Marvin was obviously at the end of his career, and there's a lot of people who thought Marvin won, like half of everyone who saw it probably). One could argue that Ray avoided giving Hearns a quick rematch, and avoided Aaron Pryor, who was an impressive JW champ and wanted to fight Ray, but that's also when Ray was dealing with the retina issue and had one single fight years. He followed that up by fighting Hagler, Hearns and Duran again. So it's not like he was sandbagging it.
I guess if I were to evaluate it more, I would say that Ray was maybe the most talented fighter I ever saw, very skilled in every area, and a lot more guts than people gave him, and he actively sought out the best fighters in his era. Did he the way Duran did? Probably not. But name a fighter that did? You have to go back to Ali, or even further back, to the 1950's when everyone fought each other several times. It's not that Ray avoided anyone the way Mayweather does, it's because Duran was simply above even that level.
So the analogy is interesting, but I think it sells Ray short, and unfairly so. All of those fighters from that era did their best to take each other on, and did several times. Even Hagler, who was a true MW, when he couldn't get champions from lower weight classes to take him on, in his words, fought "nothing but #1 contenders". Who does that today?
As to the Mayweather-Pac fight, I too am glad it's coming off. And props to Floyd for making it finally happen. My prediction is the same as before. I like Floyd 8 rounds to 4. Maybe 7-5. No knockdowns, no KO. A few good shots. I think Manny had the power and counter punching ability to hurt or even KO Floyd years ago, and would have marked the fight closer then. Now, I don't think so. For Manny to win he's going to have to mix up his styles, pressure Floyd at times, and get him out of his rhythm, and hurt him a little. Can he? One thing in Manny's favor, I'm sure he's more motivated for this fight than any in his life.
Going back to Duran-Leonard 1, experience and motivation turned out to be a bigger factor than people realized. It's now understood that Roberto trained harder for that fight than any other in his career, and used his vast experience to pressure and continually take Ray out of his element. Can Manny do the same? We'll see.