1865
Alpha Couturier
Near the top? I think you meant bottom 10, they had benefitted second least out of the entire eastern conference. And there are more Metro teams in that top 10 than Atlantic teams.
Again...of course there is! There's 8 decent/good Met teams and there's only 3 in the Atlantic.
The % of points thing isn't really accurate either as it could drop teams that have done well against your division but not elsewhere, it also drops the Western teams too, as shown by Nashville being 100% but bottom of your rankings. It isn't really a very good study and none of it benefits your hypothesis.
Really, all I can see is that against your division Toronto, Tampa and Boston are 21-5-3 and that even includes games against each other. I imagine it's even steeper when you remove those games.