Hey guys, I'm currently considering adopting a dog as a guard dog for my house. I want a breed that looks intimidating and would make any intruders think twice before attempting to break in. I've narrowed my choices down to a Doberman and a Mastiff, but I can't decide which one looks scarier. Both breeds have the potential to be excellent guard dogs, but I want to choose one that has an intimidating presence. Can anyone with experience with either breed help me out and give some insight into which breed looks scarier? Thanks in advance!

I have never owned a dog but I have had friends and family members who have owned both Dobermans and Mastiffs. In my opinion, both breeds can look quite imposing and would be effective guard dogs. However, as others have mentioned, the key to having a good guard dog is their temperament and training.
Dobermans have a reputation for being aggressive and are often used in police work or as personal protection dogs. They are highly trainable and intelligent, but can also be high-strung and require a lot of exercise and mental stimulation. Mastiffs, on the other hand, are often used as livestock guardians and have a more laid-back personality. They can be stubborn and independent, but also have a strong protective instinct.
When it comes to choosing between the two breeds, I think it really comes down to your lifestyle and what you're looking for in a dog. If you have the time and energy to devote to training and exercising a high-energy dog, a Doberman might be a good choice. However, if you want a more relaxed dog that will still provide protection, a Mastiff could be a better fit. Ultimately, though, I think it's important to remember that the appearance of the dog isn't as important as their training and personality when it comes to being an effective guard dog.