Both GSDs and BMs are fantastic dogs. They are quite different in their behaviors however. I buddy of mine who is a K9 officer and works a Belgian Malinois, describes BMs as a German Shepherd after chugging a case of Red Bull!. BMs are fantastic working dogs for police or military because they have so much energy and drive but the downside of that is they need to be working or at least heavily exercised and mentally stimulated. Shepherds are also high energy and need lots of exercise and attention, but they are down a couple of notches from the Belgian Malinois. I love German Shepherds (I have two) but I don't think I have the energy to wear out a Belgian Malinois anymore!
I will echo what Mr. Cotton said. Please consider visiting your local shelter. There are some special pups there who would sure appreciate a permanent home. Often times purebred shepherds are available at the shelter, left there by someone who did not understand that puppies grow up. Good luck with your search!
