Broner gives a good account of himself against Pacquiao and Marquez at 140 right now. Most likely loses against Pacquiao, but his style would be great against Marquez. Marquez still>Pacquiao though. This is just a styles make fights situation.
The Pacquiao who showed up against Marquez last Saturday, beats the current Broner at 140. That Pacquiao was no joke aside from getting caught twice. That was the best Pacquiao i've seen since the Cotto fight. He was winning clearly 5 rounds to 1. His clearest road to victory against Marquez of all 4 fights, he got careless though.