I'm surprised that this is such a big win for Orr. I would really appreciate if the people who voted Orr could explain why he changed the position more.
In terms of influence Orr I think Orr is similar to Hasek. Hasek was the best goalie in the world for several years, and I'm sure lots of young goalies tried to emulate him. The problem is that you can't really play like Hasek if you don't have Haseks gymnastic ability and general hockey sense.
Same thing with Orr. Very few defencemen (Coffey, Bourque and a handful of other players) can rush the puck even remotely like Orr. Most offensive defencemen today rely on good passing rather than rushing. From the videos I've seen I'd say even Harvey might have been a better rusher than most offensive defencemen today.
Nicklas Lidstrom, the top defenceman of the last decade, is a great scater, but scates nothing like Orr. Orr would frequently rush up, and then rush home. Many defencemen of today tend to scate backwards instead of rushing home.
So while Orr's influence was clear on the young players in the 80s I'm not so sure where I see Orr in the play of today's defencemen. In which way has he changed it more than Harvey?
Harvey perfected two plays that all modern defencemen try to emulate:
1) Great first pass. Prior to Harvey defencemen who grabbed the puck would often blindly slap it forward or try to rush it. Harvey would hold on to it and make a quick fire wagon transition pass instead. Scouts today look for defencemen with a good first pass.
2) Powerplay quarterback. Harvey ran one of the best powerplay units ever.