If Will wants to be in the Final 2, if I were him, I wouldn't rely on Boogie. Boogie made a comment about how Will turned on him in Season 2 and he might have to do the same to Will, this time.
You know, I can't honestly see Boogie winning against anyone, with the exception of Erika if he's in the final 2.
I do think Boogie's secret weapon, though, could be the Coup D'etat. If memory serves it was never revealed he was the one who won it. He also bullied Chicken George into not putting Will up. He won HOH and POV. He sexed up Erika to put up Danielle. So you compare his game to Erika and he's the better player.
Against Will or Janelle, he isn't the better player. Will had played the entire household and never got nominated, while Janelle has won HOH and POV more times than any player.
So if Boogie wins HOH he puts up Erika and Janelle, with Will having the deciding vote. He votes out Janelle, because she's too strong of a player to win against and this is end game. Then if either Boogie or Erika win, either one votes out Will. With Boogie emerging the winner. With so little players in the game, I can't see how they could do a power of veto. If Will won POV and took someone off, there'd be no one to nominate in his place.