The rankings of your list itself seem okay, but you're missing a gigantic series that should not only be on the list, but should definitely be above LAvCHI and thus #1 on your list.
Comparing the Chicago Anaheim 2015 vs Chicago LA 2014,
-both game 7, both Western conference finals
-goal differential was +2 for Chi against Ana, compared to +5 for LA
-the ducks series was closer throughout (never was there a 2 game lead, like 3-1 for LA)
-the ducks series had 3 overtimes (ot, 2xot, 3xot) compared to just 2 (ot, 2xot)
This series is probably the most underrated series in history of the game solely due to fan ignorance because it was a small market team. No one even remembers it existed, despite it being the best 2 teams in the league trading chances in an overtime infested 7-game series. Tampa Bay was significantly less threatening to Chi-town who defeated them handily. Anaheim controlled this series from the beginning, got very unlucky in two of the overtimes and weren't able to close. The better team lost, but a great team still advanced.