First round: vs Toronto Maple Leafs in 6 games
The Caps didn't look like the Caps we know in the first round, but were able to beat the Leafs. Goalie Braden Holtby didn't have Braden Holtby like numbers in the first round with a 2.36 GAA and .925 SV%, which is still good. They are very good all around, and can really threaten to the Pens.
First round: vs Columbus Blue Jackets in 5 games
The Penguins eased through the Jackets in the first round. Behind Crosby, it gets weaker. Goalie Marc-Andre Fleury had a GAA of 2.52 and a .933 SV% in round 1. If Pittsburgh's bottom six plays well, they can put up a very good fight.
My prediction: Washington Capitals
It's simple. All three aspects of hockey: offense, defense and goaltending favor the Caps. I think this is really their year.