I don't know if there is such a thing as the finest routing in the world. A routing [or a golf course] can really only be declared the best for that given site -- and even then, it will never be anywhere close to unanimous. The one I've always cited as being impossible to beat is Merion (East) ... there just doesn't seem to be any other way to put that puzzle together, but that's because the property lines were tailored to fit around it over time.
I think my routing for Dismal River is really good. If there's really genius in it, it's because I did some things that most people would not have thought of doing. Most people wouldn't decide to start and finish in different spots, for one thing. And, apparently none of the other architects who visited Dismal River [which, as far as I know, only includes Jack Nicklaus, Tom Watson, and Tiger Woods] ever thought about going across the road to the north and down by the river. [Wait, maybe Watson did have a couple of holes across the road ... I only heard anecdotes and saw some stakes out on site, I have never seen a routing map from anyone else.]
I will say I can't wait to get back to building it. It won't matter if it's a great routing or not unless we build a great course with it. That's the goal.