Ottawa vs Tampa Bay
Carolina vs Montreal
New Jersey vs New York R
Buffalo vs Philedelphia
Detroit vs Edmonton
Dallas vs Colorado
Calgary vs Anaheim
Nashville vs San Jose
If you're looking for any serious "upsets", I'd be looking at Montreal and Edmonton to take out their respective division and league overall leaders.
Montreal is on fire right now, and Carolina is slumping. Ironically, if Carolina gets past Montreal - I'd be thinking they'll make the finals.
If Edmonton plays at the top of their game, they will beat Detroit, no matter how great Detroit plays their own game. However, Edmonton has been so inconsistant, and any slightly off night for them will result in a loss to the Presidental Cup champs.
I can't call Philly an upset - that's going to be a very physical matchup.
Can't call San Jose an upset over Nashville. Nashville is missing their #1 goalie, plus they're in the weakest division, so their season points are inflated.