Add a draw brother, I am betting on a draw. Neither will have enough to knock each other out, but the momentum will swing from Thurman in the first 5 to Pacquiao in the following 5 with 2 swing rounds. Draw, with a rematch to come
Using the Mikey rule, outclassing Adrien Broner does not exclude one from being outclassed by a top dog at 147.
Win probability: 100% for...Pacquiao. It was a great fight. Pacquiao clearly won. But hats off to Thurman. It was Pac's night.
My prediction: Pacquiao will drop Thurman in the opening round, blitz him for the next five before his age catches up to him. Thurman will rally, but because Pac is Pac, he'll hurt Thurman badly in the later rounds. Pacquiao by UD (but will get an SD).