Pacquiao by stoppage around the 10th round. Mostly by overwhelming Clottey and taking him out of the fight not necessarily consistently hurting him. Its not just that Pac is too fast and has too much movement but Clottey is all right for Pac's attributes. Clottey is too stationary, waits for his turn to punch, never lets his hands go, and never KOs anyone. Clottey's only reasonable chance is too catch Pac because he is not going to outbox him. To heighten the lucky chance of catching Pac that is going against everything Clottey fights like. Clottey has one real advantage and thats his size. Clottey only uses his size for defense. Against Pac this will turn into a disadvantage as Clottey will only be a bigger stationary target. When Clottey is ready to punch Pac won't be there. Or at least Pac will be slipping, easily catching onto to Clottey's rhythm, and finding openings. The fight will only last long because Clottey does usually cover up very well and thus takes less damage. Pac all day TKO 10.