Akita
The Akita is thought to have been used in Japan since ancient times, and have a strong reputation for being great household guard dogs, meaning they are extremely loyal and dedicated pets. But they are also aggressive pack leaders, so if you have other dogs or small children who have friends over to play, they may see them as intruders and become hostile in response. Like other dogs, the Akita can be trained to be better socialized, but it is important to make sure your kids know how to approach this breed safely and confidently.
Pitbull
Pitbulls are well-known for being aggressive guard dogs and extremely protective over their owners, but they also get a bad rep from the history of being bred for dogfighting purposes which train them to be ruthlessly vicious. This is probably because this breed can sometimes bite and clamp down, and refuse to let go. But bad rep aside, Pitbulls can be extremely loyal and loving pets, as long as they are trained and socialized well and get a lot of love and affection.