What? It was born out of two dynasties reaching their peak and having faced one another in conference finals in 96. The Draper incident just escalated the whole thing. Detroit - Colorado rivalies werent just physical they were the battle for best team in the conference.
Im not taking sides here though as it would be biased for me to say which were the greatest.
Yeah, I have to agree on this one. I wasn't saying either one was better than the other, because that's completely subjective, but there really is no argument that Quebec-Montreal was a more significant rivalry, in relation to the league, than Colorado-Detroit. QUE-MTL held a great level of significance to the province of Quebec, obviously, and that is important to note. However, it held very minimal significance outside of the cultural impact it had on that single province.
In terms of impact on the league as a whole, Colorado-Detroit simply blows the other rivalry away. Montreal was always a strong team in that decade, and they did win a Stanley Cup in 1986, but their rivalry with Quebec was really nothing more than a cultural one. Yes, they met multiple times in the playoffs, but it's not like Quebec had any real chance of beating the Flyers in the Wales Final, let alone the Oilers in the cup Finals. Montreal's rivalry with Quebec was purely a political and cultural thing; in reality, Montreal's actual rivals for conference supremacy where Philadelphia and Boston, and Quebec, unfortunately, was an after-thought.
I don't need to explain what Colorado-Detroit meant to the league. The winner of that series was almost always going to win the Stanley Cup, and the rivalry was so intense because we all knew that in many cases, that series was the bona fide Cup Finals.