Belgian Malinois are most often used as working dogs, in the police and military. Because of this, the best of the breed are usually used for breeding. This makes the Belgian Malinois one of the healthiest of breeds. German Shepherds over the years have been very popular due to TV shows like Rin Tin Tin. The high demand for them, led to breeding in a lot of undesirable characteristics, such as hip dysplasia and digestive issues. Fortunately, as of lately breeders of German Shepherds have been discouraging using dogs with these conditions for breeding and the breed has been improving. You need to check the bloodlines for these problems when you select a puppy.