If anyone wants a statistically significant league ranking, see this:
https://www.usatoday.com/sports/nhl/sagarin/
Takes into account strength of schedule, strength of victory and other STATS. NO BIAS.
No ranking will ever be perfect, but I tend to agree with this site more than any. One of the flaws however is putting some weight into how teams are trending. 2018 Flames obviously > 2017 Flames.
Yay Flames!