I think an Eastern team is going to win THE CUP. Unless one of the Western guys really gets it together fast. By no means am I saying East is better, I just think that the West will be so tough to come out of, the team may have no gas left in the tank. Exhaustion has caused West to lose to East in the past (last season being just one example--Oilers were beat by the time they got to the final), and I think this could happen again.
That being said, a hot goalie can win the whole darn thing as well. Candiates for this are numerous, especially when you think of the likes of Ward and Roloson getting hot last year at the right time. Neither was a known star goalie until the playoffs.
But guys...Montreal? Right on cue I am...Reality check time. Samsonov would have to play well, Souray would have to be a god, and Halak would have to be the 2nd coming of Patrick Roy (or third coming of Ken Dryden)....Me thinks not. Buffalo wins that series in 4, no matter what happened in the regular season with the likes of Biron and Conklin playing goal for the Sabres.

Edit: Okay so I looked and Miller played most games. And Montreal has played well against Buffalo...but my points stand above...Playoffs Buffalo in 4 over Montreal
If Selanne played in the offensive east...and I mean offensive...He would have had 65 goals...come on,...the west is the better conference and the WAY MORE defensive conference now, and everyone knows it. all you have to do is look up the West-East record.
West has only 2 losing teams vs East. And those are freaking Columbus and Chicago
The East, has only 5 teams with winning (500 or above) records vs the West, and 4 of those 5 are the Atlantic division, which is the only Eastern division that never played against the Northwest Division this season. So noone can play an East>West card , cause it is not even close.
So technically, one would think the West should win the Cup, however....beaten up teams very rarely win The Holy Grail. I expect an Eastern team to win it. The team most designed to do this...Buffalo. Speed, offence, defensive strength as well, and good goaltending. Noone in the East plays a physical enough game to hurt them enough this year.