actually there shite guard dogs in general, most would make friends with the local burglar if he offered a pat. they just look the part and have an extremely high prey drive. meaning they love to fight and hunt.
and that has nothing to do with human aggression.
it's like taking a baby at birth from an aristocratic family and letting the local crips gang raise him. there will be blood!
there are not too many better companion dogs than a well bred top bloodline apbt.
i prefer staffordshires myself.