As a general rule, weight matters to some degree, yes, of course, but if Nelson could not lay a glove on Whitaker at 135, I don't see him laying a glove on Whitaker at any weight. No matter who Whitaker fought, he generally fixed it so that size did not matter much. These guys simply could not hit him, (or barely or rarely hit him), regardless of whether he fought at 135, 140, 147, or even 154, despite the fact that he was a little guy without much of a punch. So you have to give him credit where credit is due.
I just remember Whitakers jab glued to Nelsons face the entire bout-he just couldnt miss with the jab.
Totally agree with d green part . And 2 MagnaSaaki - u r a HW . HWs can rarely have d legs and stamina needed 2b a god runner , and that includes even most of post exile Ali's performances . Pre exile Ali was absolutely a CW in 2day's standards , well , even d post exile Ali was a buffed CW . If h real SHW will try 2 b a very mobile 1 , he will have his knees dislocated , his tendons torn , whatever . Human body does not fit d combination of extreme size & extreme mobility . And it is not a matter of fitness at all .