berto in my opinion, mosley is only dangerous for 4 rounds, pac will box mosley and stay away from that big right until mosley slows down, after that the beating will begin and it will be stopped in the middle rounds.
I think Manny shreds both of them. Mosley is actually probably more dangerous just given his power, not that he's much of a threat either at this stage. Below 154, Mayweather is the only guy who can even be competitive with Pac imo.
I say Berto. Cuz hes young and does have decent power. And hes not a washed up, damaged goods fighter. or one of PBF's sloppy seconds.
Berto based on speed, which gives him better power than he gets credit for. Shane has better power, but he's just not as quick anymore so he won't land the combinations he needs to stop Pac. One and done all night won't win him the fight.
At this stage of their career I'd say Berto is the more dangerous opponent. Like Cesare-Borgia stated above ^^ Mosley will be dangerous for only rounds. Berto has way more gas in the tank and has been looking faster than Mosley.
Probably Berto, but Mosley wont be a pushover. This will be a competitive fight for Pac. More than most people think. The styles favor Mosley, hes not going to get shut out like he did against Mayweather.
We don't even know much about Berto. He's only ever fought one top 10 welter in Collazo and nearly lost. Junior welters like Forbes, Urango went the distance with Berto. Hernandez beat a former lightweight to earn his shot at Berto. Now Berto's talking about fighting another junior welter or even Marquez. As badly as I want a great challenge to Pac, Berto looks like a hype job. Mosely in his loss to Mayweather and draw with Mora has shown as much crediability as Berto's entire career. Berto could've unified with Zavek and Senchenko, which would've gave him lots of marketability and barganing power, and is too scared to even do that. Mosely will probably be a threat for the first few rounds then go into his shell to survive the next 10, but Berto gets sliced and diced inside six.