As long as the Habs, Sabres, and Kraken aren't in the playoffs, there's no one this team can't beat.
But some present a tougher challenge than others. I think Presty is right that Carolina is one, but because Fred is there, and because Fred or not we've always seemed to be able to top them, I would be semi-confident. NYR and Shitsturkeys in net is a matchup I'm not interested in testing out right now - they're fast, skilled, and have a goalie who can steal games. Florida has the potential to be the one that outruns and outguns us, but I think their rogues gallery of misfits is now showing itself to have been a bit of a flash in the pan, not cut out to withstand postseason rigors (in some ways like our guys previously). Boston will for sure put up a fight, but here's the thing - they're old, and they'll be beaten down after two tough rounds if they even get through (Canes are not making it easy, if they allow it at all), and we've got the younger, fresher legs, and the deeper team by quite a bit with that third line firing on all cylinders.
Good news is, only one of Carolina and Boston can advance, and Florida looks ready to wilt. But I predicted NYR In 5, which I think could still happen, so they're the major obstacle in the path, imo.