That is not my position at all. My position is that team PP effectiveness is better measured as a percentage given the uneven distribution of PPO.
But if you think the 86 Dead Wings were a better PP than the 86 Oilers, that's your business.
You can't win a series on a percentage or a ratio. So you can say a power play is "better" because the Oilers went 5 for 5 in a series (100%). But if the other team goes 6 for 20 (30%), the latter has a distinct and obvious advantage in winning games.
Efficiency percentage does not necessarily translate to winning. Seen in our old friend save pct. Playoff save pct. leader doesn't usually win anything but the playoff save pct. crown...that and a dollar gets you the Sunday paper...even when you remove one-round wonders for sample size concerns (meaning, the quickest I can eliminate you is rd 2) you get...
2.5 Cups/eliminated first chance you got 6 times
2018 Martin Jones (out in rd 2)
2017 Matt Murray (split time goalie, only played the last round and a half, but won Cup)
2016 Braden Holtby (out in rd 2)
2015 Braden Holtby (out in rd 2)
2014 Tuukka Rask (out in rd 2)
2013 Tuukka Rask (lost SCF)
2012 Jonathan Quick (Won)
2011 Tim Thomas (Won)
2010 Jaroslav Halak (out in rd 3)
2009 Jonas Hiller (out in rd 2)
2008 Marc-Andre Fleury (lost SCF)
2007 Roberto Luongo (out in rd 2)
2006 Ilya Bryzgalov(out in rd 3)