A few years ago? Dude... try almost a decade! You're talking pre Lock-out lol. And I never said the lower seeds couldn't win, I said the truly best team does move on and gave the example fo Philly, the 7th seed beating 2nd seeded NJ. Once you are in the playoffs it really is anybody's game specially in the new Salary Cap Era. However, usually the higher seeded teams earn their spots. I say usually, because it really irks me Division leaders are rewarded with a 1-4 seed, when at times they benefit from a weak division (SE division is notorious for that). So on many ocassions the series between the 3rd and 6th seeded teams the 6th seed is a better team, but since the 3rd seed is a division leader they cruise to home-ice advantage.
So again the best teams, regardless of seed, move on. THE END.