The thing the might put the Bruins in a class by themselves is their 65 regular season wins and record points. Arguably one of the most complete teams ever. Ullmark is a likely Vezina winner and he's given up 10 goals in the past 2 games (we won't count the empty netter).
I know Marchand draws grudging complements at most when he's not playing like a rat, but you'd expect Bergeron to pack it in and I don't think Kejci is long for the NHL, either. Last rodeo for those guys together.