Having lived through both the"Richard Riots" in Montreal, but being too young to recall as an adult, and the last season Jean Beliveau came back to snatch the SC from the Bobby Orr led Bruins was great! That next season after Maurice quelled the anger of fans that not only witnessed his loss of playoffs & losing the SC Final to Detroit due to his suspension. The Habs being in each SC Final that decade, Detroit winning 3 times, Toronto once, the Habs 6 times.
In truth the Habs & Maurice in particular were the epitome of hockey greatness in the 50's, 60's & 70's, which has led to NHL greatness, IMHO.But having witnessed most as an adult, going back to witness that 1955-1956 or 1956-1957(The team Jean Beliveau thought was the best he ever played on or seen.)would be my choices.