Mastiff breeds are best guard dogs for home.
a Rottweiler
I would say doberman pinscher or rottweiler.
A German Shepherd , a Doberman, or a Rottweiler.
They are the best built for intimidation.
An Alsatian/German Shepherd, fast movement, intelligent, and loyal dogs. They're so powerful and about the 3rd most deadly dog. Best guard dog by a mile
giant schnauzers are the best but if you want a lap dog get a mini
If it is a guard dog it guards property, that is useful.
mini Australian shepherd chihuahuas will bark constantly-- best guard dog I've had and seriously vicious. youd be surprised
1st Chihuahua...studies show it is the best type of guard dog! 2nd Rottweiler 3rd German shepherd it doesn't madder what dog any dog can be a guard dog your dog just needs to want to protect you
A guard dog guards everything behind your fence or in your house, a protection dog will protect you outside your property, a watch dog will give alarm when someone enters your property. A rottweiler is an ideal guard dog.
A watch dog is the same as a guard dog. They guard a building of some sort for robbers, intruders, and mailmen.