they are both breed for hunting but to answer your question it would be a Doberman, Pitballs were breed originally to bring down big things like bears and to fight against each other so have that natural fighting and killing instinct whereas Dobermans were used for just fighting and if they were used for hunting it was for small things like shoot rabbit and badgers, things that were already dead so they don't have the instinct to kill as strongly as the Pitbulls. Dobermans also if trained properly are VERY loyal dogs who won't let any other dogs get near you if that's what you want them to do where as Pitbulls are one of the worlds most unpredictable breed.
I would like to add that I have owned a doberman and they are very good dogs
Dobermans are better guard dogs get a doberman they are by far way better dogs.
I think you mean either a Doberman or a Rottweiler.
The doberman is larger. Some males can grow 100-125 pounds. Pitbulls are 80 pounds at their largest.
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.
As for a guard/yard dog, the rottweiler is better due to size.
a cane corso an a English mastiffeither a doberman or rotweiler ooh or maybe a Himalayan sheep dog
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.
Another Doberman or a German Shepherd.
DOBERMAN GERMAN SHEPHARD a doberman is a very nice dog and one of the best for guard dogs and let me tell you why. A doberman is the 2nd fastest breed of dog in the world and a German shepherd is about 10th. a doberman pinscher also has very strong jaws one of the strongest also. and im not saying a German shepherd isn't fast because they are but not as fast as a doberman. i have 2 dobermans 1 is a dark red 5year old doberman named diva wev had her since she was 13 weeks and we just got another red doberman named redbull. my female diva doesnt like redbull because he is annoying. they always fight and redbull doesnot back down redbull fights with her and he is so brave when he grows up a pitbull couldn't take him. wev had him for a month and a week and hes 13 weeks and hes already faster than me and im 12 years old. so that's why a doberman is better to have.
Dog
A German Shepherd , a Doberman, or a Rottweiler.
one dog may be better then another dog by being friendlier, having a better build, coming from better bloodlines, having more experience in a field of training, better training in general, etc... It also depends on what your gonna use the dog for if you want a guard dog a German sheperd or a doberman pinscher or a pitbull would be better than say a great dane or wolfhound because there more aggresive while the dane and wolfhound are just very large which makes them good for things that the sheperd or the dobey or pit wouldn't be good at such as herding or show