Joel Casamayor versus Manny Pacquaio:Lightweight title who wins and why?

At this point in time I have to go with Pac-Man. Back in 03-05 I would pick Casamayor but he has lost a step. He last beat a shot Corrales and got a draw he deserved to lose against Kid Diamond(who is B level at best). He is getting a little long in the touth but he is the lineal and recognized champion at the weight. If he has one great fight left in him and comes in great shape(which i know he would in a fight this big) he has a shot at an upset. Pacquaio's stamina and tenacity will be enough to win on points against an older lion. Both are leftys with good speed. Casamayor always had underrated power but has the power to hurt Pac-Man at 135. He has a great chin and grit. He is a better classical boxer than Pac-Man but Pac-Mans athleticism makes up for technical flaws. Close but Pac-Man wins