Well over 20 years have gone by since the NYI dynasty and both Potvin and Trottier are still held in higher regard than Bossy, at least to a quite knowledgeable group in the HOH section around these parts.
Potvin 18
Trottier 31
Bossy 36
Top-100 Hockey Players of All-Time
For what it's worth though:
Potvin:
Norris finishes = 1/1/1/2/2/3/4/8/9/10
AS finishes = 1/1/1/1/1/2/2
Hart finishes = 2/4/7/7/9/9/9
Point/gp player playing from 20-34 (as a d-man)
Point finishes = 5/7
Bossy:
AS finishes = 1/1/1/1/1/2/2/2/3/7
Hart finishes = 3/4/4/6/7/10
Rocket finishes = 1/1/2/2/2/3/3/5/7
1.5 points/gp playing from ages 21-30
Potvin was a better D than Bossy was a forward, so I don't think its a stretch at all to say Potvin is better all time, and he certainly can't be compared to Ovi in the sense that, yes they are both goalscorers, but Ovi has the resume of Harts, Pearsons, way more goal leads, a ross, and 3 point/gp leads.
As far as Trottier goes, I feel Bossy should be ahead of him (but they are close), I'd assume a lot of it has to do with Trottier having a Hart/Ross to his name, and finishing with 300 more points than Bossy did. Either way it's fairly close 31 vs 36 in that ranking.