Wings are 16-3-3 against the West, Rangers are 13-3-5 and Pens are 12-4-2.
The simple fact of the matter is that when the playoffs start, regular season stats go out the window. I believe any team can win come playoff time. Upsets are more common in the new NHL. Look at last years top regular season teams in the east and west. Boston was out in the 2nd round. Colorado went out in the first round. When the playoffs hit, I think you are going to see some teams do very well and others do poorly.
Nashville is going to make some noise, but I don't see them advancing past the 2nd round. I see the Hawks and Kings squaring off in the conference finals again. Playoffs are all about experience and seasoning. In the east, I see Tampa and Detroit taking another step while Boston and Pittsburgh are taking a step backwards. Detroit's young core got a taste of that last year and I believe this year they will do much better. I think a conference finals appearance is in the cards for this year for the Wings.
In the new NHL, getting into the playoffs really is the first step. I believe any one of the sixteen teams that make it in can win the cup.