While it is obvious that we are going to disagree on some points here, the big difference in the dogs is the breeding. AKC has no minimum standards while the German registry sets some high standards to make sure the dogs are what they are meant to be. While I am quite sure that there are some very good AKC wire hair dogs out there and a few bad DDs, I think that you will find far more AKC dogs that have nothing more in common with the breed standards than a vague resemblance.
* (Swinging club) Whack! whack! whack! *
Nope, the old nag's still dead .