Pacquiao VS Sergio Martinez ? who would win?

That fight would only be feasible if both fighters not only Sergio would meet the catch weight of 150 lbs. at weigh-in time. Meaning to say, Manny has to gain at least five pounds from his best normal fighting weight of 145 lbs. and Martinez has to go down in weight by 6-8 lbs. from his best fighting weight of 156-158 lbs. That way by fight time, both will have to adjust fighting in weight they are not accustomed to. In that event, the one who has made the better adjustment going up or down in weight would be in the better position to win the fight.