Doberman Pinscher - The Doberman Pinscher strongly defends its territory and is one of the easiest guard dogs to train. Dobermans are extremely loyal and trustworthy to their master, making them natural protectors. The Doberman's "medium size" (24-28 inches at the withers and approximately 70 pounds) makes it a good choice for a house dog as well as a guard dog. This top guard dog choice is extremely energetic and intelligent, thus making proper training and handling essential.
German Shepherd - The German Shepherd is quite easy to train and both a loyal family dog and an excellent guard dog, making it a top choice for a family pet. This dog is likely to bark at intruders, but is otherwise quiet. The American Kennel Club describes the German Shepherd as "direct and fearless, but not hostile".
Great Dane - The Great Dane is often described as the "gentle giant", however its imposing appearance (the preferred height is a minimum of 30 inches at the withers and weight can range between 100-150 pounds) and tendency to strongly defend its territory makes it a top choice for a guard dog. The breed was originally developed to hunt boar, a ferocious animal.
Rottweiler - The Rottweiler is described by the American Rottweiler Club as a "calm and self-confident dog, who has an inherent desire to protect home and family." An excellent guard dog choice, the Rottweiler is both highly intelligent and highly trainable. The Rottweiler is a large dog, ranging between 22-27 inches at the withers and weighing up to 135 pounds, and has a tendency to bump into family members (a natural tendency dating back to their cattle herding days). This can be problematic for families with small children or elderly household members.
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