I watched this series. Carey Price has been as good as Lundquist, perhaps better. The Habs were more in tune with how the refs were calling the game, and adapted to the hitting Boston was throwing around. They hit back, tired out Chara and his teammates and ended up being the better team. Montreal is peaking now.
Not sure the Pens would have won, but they would have imploded on Boston for sure.
Not going to go down the What If path.