First off, don't toss out some BS about where Pacman ranks and who he could and couldn't beat. You consider Pacman a great fighter. Toney at the time he fought Jones was Top 2 P4P and a 2 division champion who had disposed of many good fighters. He was no better at 160 than he was at 168, your simply guessing that to make your argument stand up. Toney was never great? You lose any credibility in this argument there. Look at the fighers he beat before he fought Jones. I never said Jones wouldn't be hit by Hagler or SRL. As a matter of fact, I never said half the BS you posted. My post that you quoted was only one sentence long. As for your Physics lesson, let me tell you something. You are not dealing in absolutes. Yes, chin CAN go away. Mercer's punch resistance has lessened. When your body deteriorates, the WHOLE body does. Case and point. Do you think Johnson hits harder than Toney or Ruiz or even Hopkins? They all caught Jones flush, to no avail. BTW, absolutely I expect you to believe that 10lbs (and it's 15lbs from MW to LHW) can make a difference. Do you not watch boxing? Of course fighters chins are better at their natural weights. That IS why there are weight classes. That last bit of crap was just horrible. I never said Jones doesn't get hit flush. And I never implied the BS that you implied. There are guys who have KO'd fighters that harder punchers could not stop. For you to imply that suddenly means they hit harder? That's just dumb. I can go get a list of fighters that Thomas Hearns didn't KO, who were then KO'd by far weaker punchers. Does that imply that the weaker puncher hits harder?
At 168, nobody beats a prime Roy Jones Jr. He was something special -- a gifted athlete who could have done a number of things other than boxing. At 160, there are a few candidates, like Marvin Hagler, but I still wouldn't favor them.