Both Williams and Martinez are both far fetched options for Pacquiao, and I refuse to go into the whole "he has surprised me before" thing. Williams is way to tall, and Martinez is too big, and has enough speed and defense to give Pacquiao serious problems. In my opinion, it wouldn't be a fair fight in both instances. Marquez and/or Maywather, then retire. Thats what I think.
Pacquiao is never going back down to 135 so you can forget about that one. Of course he wants Mayweather, and it would be up to the Ring whether that would be for a lineal title. Don't think he will ever fight at 154 or 160, so that probably rules Martinez out imo. Most likely if Williams beats Martinez, Pac could fight him at a catchweight of 150 or at 147 if Williams can get back down there.
I think "team" Pac has experimented enough using extreme catchweights and rehydration clauses, its just gonna get somebody permanently damaged and Arum and Roach and Ariza know it So if Marquez gets past Katsidis, he should meet Pac halfway at 140 and not at 147 as insisted by Roach. Roach want Williams or Martinez to come down to 151 but 157 would be safer for them Roach "claims" to want safety. At 140 though, I much prefer Bradley vs Pac but then they are saving him for Kahn
Pac really doesnt need to be dropping weight like that! Floyd at 147 sure, then as a swan song, win or lose, knowing pac he would probably go up to 154, anything above, even IF he could gain the weight wouldnt be sensible. He is after all a "small" man.
Floyd @ 147 and then a farewell fight, Marquez @ 140 maybe in the Philippines to clear the score 1nce and for all... We see that happen, win or lose in those fights we see the closing of an extraordinary fighters career!
He was 1lb heavier against Margarito than he was when he fought David Diaz at lightweight. He wouldn't be dropping anything.