The numbers are close, but now that Boston is healthier the Bruins get the advantage. They have more gamebreakers up front who can get big goals at big times.
Boston power play vs. Montreal penalty kill
The Bruins power play was pushed to another level when Sergei Gonchar came aboard at the trade deadline, and Montreal did not finish in the top 20 in penalty killing during the regular season.
Montreal power play vs. Boston penalty kill
The Canadiens were a top-10 power play during the season but there is a dropoff from the first unit to the second, whereas the Bruins have depth in both penalty kill units.
Both coaches are green in terms of playoff experience, but both did an excellent job in the leadership department during the regular season. Until the series is a couple games old we won't really know who has the advantage.
The hardest Boston player for to defend is Joe Thornton, and until he is healthy enough to be a difference-maker the Canadiens have one less thing to worry about. Advantage Montreal.
Boston in six.