I kinda have always followed the USA Today Sagarin Ratings. They are a computer based rankings of the NHL, althought they also do NFL, NCAA, NBA, etc.
https://www.usatoday.com/sports/nhl/sagarin/
The Flames have moved up to 6th in the NHL, where Edmonton is the 19th.
Flames have played the 10th hardest schedule. The Oilers, 2nd hardest.