I would go for the Cochin but that's if you have them as pets. I have had one for 7 years. She is the most loveliest natured chicken I've ever met. Sometimes she just comes over and climbs into my lap. She layed about once every day/ second day for the first 4 years then slowed down a bit...
I have recently bought 4 baby quails but one of them has slowly developed a wonky foot. It started just with one toe but now the door is curled under and she doesn't use it. She limps a little when she walks but it's not to bad atm. I have had a similar case with a chicken, as it got older it...