Oh, and yea, Hart is much more presitgious. You're the most vital piece to a (usually) contending team.
2nd would be art ross. It combines goals and assists. Pretty much shows that you are a complete player offensively and better than most, if not all, forwards in the world. This is also much more presitgious than the Richard because goal scorers can mooch off a good play maker (Guerin, Cheechoo, G. Murray off Thornton, Gagne and Hejduk off of Forsberg, etc).
I think the Hart and Lester B. have to be 1 and 2 (in whatever order). Then I would have Vezina and then Art Ross then Norris and Selke in that order. My mind could certainly be changed about the order of the last 4 though.
Hart because it shows who the best all around player is. Art Ross is a good trophy too but there are a lot of great scorers that can't do much in their own zone. That and Art Ross also has a factor of what team you play on. You can be the best player in the league with awful linemates and never win it.