Sporthunter ...
ANY dog can bite anybody at anytime. The owner has to learn how to behave like the alpha in the pack to even begin to control their dogs behavior.
those are words to live by!!
My vote goes to Labs or Irish Wolfhounds. Although there are lots of great breeds to base a family pet on .. BUT you still need to train them/socialize them properly.
One of the well known breeders of Wolfhounds around here started because he wanted a large breed that could accompany a mentally handicapped child. It was extraordinary how well they interacted and the comfort the parents had.
The down side to Wolfhounds is like other giant breeds they don't live long and leave a pretty big hole in your life when they go. The other problem is that if a thief breaks into your house - and is not deterred by the dogs size - if the thief opens your refrigerator and shares whats inside with the wolfhound - chances are you've lost your valuables ... and your dog!
Wolfhounds generally very docile by nature (and as a result of careful responsible breeders) will play with cats, kittens, puppies and any other dog in the neighborhood. As long as the other animal shows no aggression a wolfhound will happily play with almost anything. You might assume from this that they lack the aggressive instinct to dominate in a showdown - you will be disabused of this notion in a real hurry when your wolfhound encounters an animal that bites them -- because their friendly demeanor changes in a frighteningly fast manner -- it is extraordinary to see how quickly an animal weighing 175+ pounds can respond and move!
Short story to illustrate -- I was jogging, with the wolfhound on a leash (despite laughing comments from passing drivers about "who's leading who") - we encountered a very large and, as we discovered, aggressive male doberman being walked (also on a leash) .. I pulled the wolfhound in to heel with a short leash and we slowed to a walk giving the other guy and his dog lots of room. My dog seemed pretty interested, showed no aggression (tail wagging as usual) and was anxious to greet the other animal - which I did not want to allow given the other animals response as the doberman started to growl/bare teeth etc
While we were still some distance apart the idiot leading the doberman dropped his leash and his dog attacked. This happened so quickly all I could recall was the doberman hitting my leg and bring his jaws down on the back of the wolfhounds neck as the wolfhound tried to turn (but was being held by my leash) .. .the next think I recall was the doberman on its back - 4 legs in the air - eyes back in the skull with lots of white showing - head back and wimpering. The wolfhound stood over him and had the doberman's neck in his mouth. I simply do not recall/did not register what happened in the split second(s) interval between. Three of us were obviously pretty shocked at the speed and violence that just took place: myself; the dobermans owner and .. clearly the doberman
My view on dogs and children is that you NEVER know exactly what a family pet is thinking - and until your child is big enough to deal with some aggression .. you need to supervise them (child and dog) constantly.
Another small bit of experience I will share -- when my son was very young he loved animals .. unfortunately a stupid acquaintance of mine brought his Lab into the house we were visiting and released a very excited animal to greet the boy ...before I could get between them, the Lab in it's excited (and non-aggressive) state ran at the boy quickly and managed to knock him to the ground ... the dog certainly wasn't intending to hurt the child unfortunately he still was knocked to the ground. My son (10 years later) is still very wary around dogs. We are slowly working on this as I want him to learn that he must show confidence that animals will respect ... his younger sister has no such issues and has learnt to push horses around while helping to muck out a barn -- and deal with dogs. In fact I am a little afraid she will find a coyote and bring it home one day!