I'll just repeat what i've said about this matchup before. If the fight with Mayweather comes off it would be much easier to judge. If Pac wins it doesn't automatically mean he'd beat Whitaker too but it would be a lot easier to lean that way. Pacquiao hasn't fought anybody like Whitaker, but the reverse is true as well.
Whitaker by UD.......9-3...now if Pacquiao ever fights and beat Mayweather..my opinion might change...NOT to sound like a Mayweather nuthugger and apologist but Pac need to fight a slick african american fighter...before he has any chance vs. the slickest of them all...
Whitaker 12-0, Pac wouldn't win a second of this fight. Floyd would beat Pac too, and Whitaker is better than Floyd at 135.
I'd say 12-0 Pea but I can't really see PAC getting whupped for that many rounds, so pea stops him in 10