Gamboa is now at 126, isn't he? Why do you ask then about 122 Pac? Anyway, the 122 version of Pac altough swept away Ledwaba, really suffered against Agapito Sanchez, so it's hard to answer. What I know for sure is that the Pac who stopped Barrera stops Gamboa within 6-7 rounds. Although Pac does not have the skills Gamboa has, he has the power and the same handspeed. Pac by TKO in 6-7 rounds.
the Pac that fought Barrera was the 122lb version. In fact Roach said before the fight that Pac could still make 122lbs easy and would go back down to 122 after the fight unless someone offered big money. Basically its the same version of Pac who just cut 3 lbs less than he usually has to.
pac by knockout. I mean come on pac tko a prime barrera and kd a prime marquez 3x in 1 round and got robbed in that fight. Both of those guys are world champions. Gamboa is not even in their level, pac by tko:good
Pac is still in his prime. He wins only by using his experience. Toe to toe, Gamboa is one hard and fast puncher. His defense would be his downfall as he can get away with low hands with lesser opponents. Styles make fights, so it's hard to use Pac's other fights to compare. Might be surprised that Pac may have not fought anyone with Gamboa's skills either. Would be interesting and if Gamboa keeps going it might happen