Definitely the 1976-77 Canadiens.
Regular season record: 60-8-12 for 132 points (14 wins via SO)
with a goals for/against of 387-171
Scotty Bowman coaching them
Guy Lafleur and Steve Shutt as the snipers. Combining for 44 points in playoffs
Defensemen Robinson and Lapointe combined 161 points and +/- of +189. Combined for 24 points in playoffs
Ken Dryden in net.
Regular season: 41-6-8, 2.14 GAA, 10 SO's
Playoffs: 12-2, 1.55 GAA, 4 SO's

The discussion begins and ends with the 76-77 Canadiens.