Weather plays a part in the decision making, too (or at least it should, depending on your climate). I don't know how cold your area gets, certainly not as cold as mine, but up here we have real winters and chickens can't be bare-backed in the winter (and winter here is half the year) or they'll get frostbite. They can't be bare-backed in the summer either because they could get sunburned (nevermind the cold winters, we get brutally hot summers, too). So they need to be able to maintain a healthy feather cover year-round just for their own sake. Not that I even want a rooster, but if for some reason I ever did, this would be one of my main considerations.