I grew up with dogs and it was pretty true to say most purebreds were more highly strung than Heinz-57s so more likely to yap and nip/bite.
I think it’s a shame what breeding has done to some once proud breeds e.g. poodles, dachshunds, both of which were hunting dogs once.
The only dog I couldn’t get along with was a boxer.
REALLY?
My boxer is the biggest baby.
She has the most expressive personality.
That and she is so ugly, she is adorable.
Breeding is one consideration, training is another. A dog who believes he is “alpha”, whether of a dog or human “pack” will be more aggressive than a dog who believes himself subordinate to a person. With proper training, most dogs will accept that they are subordinate to at least one human.
I guess it depends on the dog, but the two boxers I have been acquainted with have been the sweetest dogs.