Bullmastiff
Bullmastiffs are quite large and males can actually reach weights up to 130 pounds. If you should get one, you need to be serious in your training, often times, they are used as guard dogs because of their strength.
American Bandogge
American Bandogge has a rather formidable appearance which is dangerously complemented by tendency toward an aggressive temperament. This dog is intensely muscular and shouldn’t be messed with when they’re in a “bad mood”. The American Bandogge needs to be trained to listen to all family members and not just one.