Best team in NHL history. Like the Yankees and Lakers, it comes with the territory.
The Montreal Canadiens are the greatest team in NHL history. This is fact. 24 Stanley Cups, more than twice any other team except the Toronto Maple Leafs, who have 13, and more than four times more than any other team than Toronto and the Detroit Red Wings, who have 11, certainly nowhere near enough to consider them better than the Canadiens. They are all original six, so the Wings haven't won more per year or anything like that.
In fact, the Canadiens have the best cups per season ratio of any team in NHL history as well, at one every 3.83 years, second being the Edmonton Oilers at one every 6 years.
Arguably, the Oilers could be considered the second best team in NHL history (laugh if you want to, but to do so would be to ignore the evidence because of the laughable state that the Oilers are currently in) because of the second best cup per season ratio, and being that they are the only non-original six team to be in the top five in Cup victories (being tied with the Boston Bruins for fourth with five Cups). Obviously, the Red Wings have managed to spread their success over the ages of a few dynasties, while the Oilers won all five of their Cups in just seven seasons.
At the very least, the Oilers dynasty that won those five Cups is obviously one of the greatest single dynasties in NHL history (and in my opinion, is clearly the best considering they did it in an NHL with many more teams and had to dethrone another of the other great dynasties in NHL history, the New York Islanders, who had won four straight Cups leading up to the Oilers first).
The Glory Days were nice, I need to hold on to them.