Keep in mind I am the biggest Lidstrom fan in the world(my collection of stuff is proof). But when Lidstrom can put up a +/- rating over 100 and skate through 5 guys on his way to the net and score and win 8 Norris trophies in a row then he will be the greatest.
I agree with your statement. But what you just described is not the work of a defenseman but a forward, and Lidstrom's even at least with Orr in the defense department if not a few steps ahead. Either way, theres no contest because what Lidstrom does is too consistent and not flashy. Orr will always be the best Dman.