Yes, @mustbemad17, I am absolutely "judgmental" when it comes to dogs. I would not allow my child to visit the home of a Doberman, Pit bull, Rottweiler, or similar. This is not simply about "what a dog looks like": you are projecting, and you are personifying animals, and you do not understand the power of instinct bolstered by selective breeding.
I grew up on a horse farm, so I am actually quite well versed in these matters, and I've also been around a lot of dogs and other animals: you sound like a city person who has not been around animals much, except maybe a few household pets. This isn't your fault, but that's what it is.
I am not basing my stance wholly on what the media says. I've known both a Rottweiler and a Doberman who "went mean", and their owners, up to the point the dog inexplicably reacted in an aggressive manner (one to a child, one to its owner) one day, also prattled on about how their dogs were not aggressive, and the breed means nothing. There have been problems in my state with people stealing household pets (cats and friendly family dogs) to use in dog fighting rings as bait: this is very real, and people who breed these types of dog specifically for aggression TODAY still persist, and so you just can't assume that any dog you purchase is the result of several generations of responsible breeders, in any case. I've been in regions in which these types of dogs are disproportionally in evidence: these animals are not kept there as family pets; in those places, they are presented in quite a different way.
Also, read up on the history of the Doberman. They WERE bred for aggression against strangers. A dog who is not able to show aggression to an attacker is not much of a protection at all, and again, read up on the specific origins of the Doberman.
I absolutely judge a person who chooses one of these dogs. Launching rhetorical questions at me about whether or not I judge the dogs "by their appearance" is ridiculous. If there is even the slightest risk that certain dogs may be more prone to aggression (and there are: see the statistics), I won't have my child around them. Why would you risk your child at the expense of wanting to appear non-judgmental about an ANIMAL'S appearance?