Dobermans are better guard dogs get a doberman they are by far way better dogs.
Question doesn't make sense. "Police dog" is a job description. "Doberman" is a breed. A police dog may well be a Doberman. Or an even bigger dog.
I think you mean either a Doberman or a Rottweiler.
Dog fighting is illegal but that question is easy to answer. Dobermans are guard dogs and not a fighting breed. Dobermans are not afraid of anything. That is untill they feel pain. Never put a pitbull against another breed. That worst than watching two pitbulls fight.
There are no standards for the weight of the Doberman Pinscher. The ideal dog must have sufficient size for an optimal combination of strength, endurance and agility.
a cane corso an a English mastiffeither a doberman or rotweiler ooh or maybe a Himalayan sheep dog
The size can be 2 through five inches. It depends on what the dog size is. They bigger the dog, the bigger the foot.
Another Doberman or a German Shepherd.
It depends on the size of the dog, the bigger the dog the bigger the meal.
As for a guard/yard dog, the rottweiler is better due to size.
Any dog of that size can certainly be dangerous, but it's more about the upbringing than the breed.
Dog