Sash definately is a one person dog. He tolerates my husband but cries and whines when I go to leave. He doesnt care for anyone else to pet him, make over him, etc. he could care less.....
The funny thing is, when theres Thunder, which he doesnt like, he will run to hubby

Now, I have owned Dobermans and they are true velcro dogs.
But some people up the street have a couple and they are the nicest dogs. They push each other out of the way for the pets, attention, etc LOL they seem to like visitors.
Most of the GSD's i have been around really are kind of aloof, I dont mind, I know its their nature. One tolerated me hugging him around his neck (couldnt resist) but he didnt seem thrilled, his owner said he was more excited becase he was headed for the park
Cant blame him!