I am starting a new flock this spring in Vermont, and I need a cold hearty, dual purpose chicken. I also want to breed, so I need a broody, but friendly breed, as I also have three children. I have read reviews on many breeds, and these two breeds seem to fit the bill. I have heard that buffs are better layers, and dark cornish are better tasting. I think it really comes down to personality and temperament. I am leaning towards black australorps. What are your thoughts on these two breeds?