Have you ever considered the Cornish from Murray McMurry? I love the Dark Cornish for size and eggs. They lay very well a huge brown egg, and are breast heavy and great for the table. They are dark (not so pretty) and rustle and fend well for themselves, but will become broody, making a great mother hen. I also like McMurry's Cuckoo Marans, though more costly they grow huge fast and lay a dark, large egg, but don't lay as well as the other breeds you are considering. Those are the two hatchery breeds I like best for what you'd like to use them for. The great thing about McMurry's is you can order several different birds and see which ones you like best. Order 50 straight run chicks and you should get 25 to 30 to butcher. Keep the nicest Roo and all the hens you have room for.
How I love sudying that McMurry catalog. HenZ
How I love sudying that McMurry catalog. HenZ