Best Free Range Chicken Breed?

[BlackHackle]

These are the breeds that I was leaning towards and actually have young Black Australorps in a Chicken tractor with White Leghorns and some Easter Eggers. I like the EEs and BAs.

Can you please define "Breeder Quality "? Most of my eggs have been from locals on Kijiji or Facebook with mixed success. I suspect some inbreeding issues.

By breeder quality I mean birds that will meet the traits common in that breed. For instance, a Breeder Black Australorp will weigh more at butcher time than a common hatchery Black Australorp