Is meat a consideration? If just eggs is the goal Rose Comb Ancona, Hamburgs or RC Leghorns would work well. If a dual purpose fowl is sought, RC Rhode Island Reds, Dorkings, Buckeyes, Wyandottes, Chanteclers would all work well.
I'm usually the first to say climate doesn't really matter, but Rose, Pea, or Cushion Comb breeds produce wonderfully and in some of those breeds are really scarce so they could use some champions. And the combs are less prone to issues then Single Combs.
Yup. If your winters are like our winters, comb is a real consideration.