RE: Griff vs. DD
From a macro perspective, I think it would be tough to find two versatile dogs so different. Each dog is different, but in general you will find:
A DD will hunt harder than a Griff. He will be stronger on fur. He will NEVER quit. He will be more hard headed. He will be able to take more pressure while training. He will test you more.
A Griff will be a softer dog. He will be easier to break, but also ruin. They tend to be more comical and use that to manipulate. They will be better with children.
If you are a person that doesn't like to put a lot of pressure on your dog, I would take a serious look at a Griffon. If you are looking for the hunting dog that will do almost everything, go with a DD. I say almost, because only the Pudelpointer does everything :-D
From a popularity contest, I don't believe either one of them is more or less popular than the other. Both are popular dogs. Depending on where you live, you may see one type more than the other. Here in Quebec, there are by far more Griffons than DD's. I think you would find the same to be true in WI.
I used to believe the same as you as far as dogs being a product of the owner, and I still do to some extent. However, with a well bred dog, you will not need to work as hard to achieve your goals. Genetics are very important in getting a good dog. Pointing instincts, Running style, Backing instincts and others are all genetic traits that can help you get kickstarted with a great dog.
If you want to talk to one of the best Griffon breeders in North America, call Steve Brodeur at 819/858-2042. I think he has two litters on the ground right now.
The true value of the DD, in my opinion, is the level of consistency among the breeders. I think if you do choose to go with a DD, you can check out the breeders on the VDD-GNA website or the VDD-Group Canada website. Whichever breeder you find will give you a very good dog.
Good luck.