I am going to be hatching alot of faverolles this spring and selecting the best 1 or 2 cockeral to keep for breeding. I would select this way 1. type and breed standard 2. color 3.productivity 4.personality. I agree with speckledhen though if the rooster is aggressive I would cull him and defently not keep him for breeding. I just want you to know that to get 10 nice BQ birds in all of those breeds is going to take alot of hard work and startup money. From a dozen eggs I would say at best you could expect a really good breeder quality quad. I have learned there is alot of know about each individual breed and it takes time to develope an "eye" for the type and color of the breed. I think it will be very very hard to develope the "eye" for all 7 so quickly. I would also like to say that unless you get your eggs or birds from a very responsible and well known breeder you cannot depend on getting any breeder quality birds.
Good luck,
Henry
Good luck,
Henry