I wouldn't worry about Crosby, lots of players have groin issues during pre-season.
As for the easy rides, yeah I think the Pens have had two fairly easy rides (up to the finals). I'm not taking anything away from the Pens, the Wings had a very easy ride in 2008.
Even in the Washington series that went to 7 games, it was never that physical, never very long OT's, and game 7 was over before it started. As someone who watched every game of both that series and the Wings-Ducks series, I can tell you they were as different as two series can be (though both very, very entertaining in their own ways).
The Pens need a team in the East that doesn't try to beat them on skill, but just tries to beat them the fuck up, like the Ducks did against the Wings in 2007 and last year.