Nah, Gamboa at his absolute future best still gets major problems by Guzman. Guzman's a brilliant fighter and if 135 gives him better stamina, he's even more dangerous and then it's a total toss up. I'm not under selling my guy Guzman here, he's incredible. Gamboa has the better power, but Guzman's never even blinked at a flush shot landed on him. The mans jaw alone is massive.
Guzman is just better in every area IMO, apart from punching power. They actually both fight very similar, Guzman is just a better, more polished version IMO.
Guzman would win currently, they both have the same style but Joan is far more polished and experienced.
guzman is more the finished article at the moment and may well be the better of the 2 peak for peak anyway. guzman by mid rounds k.o