There is no definitive answer to this question as it depends on the individual dog and their personality. Some dogs may be better at guarding than others, and it ultimately depends on their personality and how they are raised. Some dog owners swear by their Eskimo dogs as being some of the best guard dogs around, while others find them to be less efficient at it. Ultimately, it is up to the individual dog owner to decide whether or not they believe their dog is a good guard dog.