With the remaining teams I'm indifferent who really wins, but if I had to choose I'd go with Seattle because it'd be awesome if they made it to the finals (Vegas is already a solid team who have done great since they joined. Got to spread the love!), and Florida since I like their gritty play (they play like forechecking Isles but with more speed and scoring touch) and underdog status bating Bruins and Leafs.
Carolina on paper should beat Florida, but streaky Bobrovsky is hot. If Vegas meets Seattle, Vegas should beat Seattle, but hell they took down Colorado and Dallas.
Wacky playoffs. But goes to show teams with good balance have done great so far. Each remaining team so far have deep rosters where even 4th liners can pop in some goals.