From your list of chickens I have/had Welsumer, New Hampshires, and a speckled (not light) Sussex. All 3 have been great birds. I had 2 New Hampshires, and they both were my best layers at the time, giving the most and the largest eggs from my little flock. At present I have (among others) 1 Welsumer and 1 Sussex. Of the 5 pullets I got last March the Sussex was the first to lay, at about 18/19 weeks, but she stopped in September, and hasn't started up again. Don't know what is going on with her, as she isn't obviously molting. She's a nice bird though, very sweet, follows me around. The Welsumer started later, but has been very good with her laying, doing the best of all of them now in the dark days of autumn. And her dark brown eggs are just stunning! I like my mixed flock, but I think I might get a few more Welsumers just because the birds are lovely, and so are their eggs. I have also have had 4 different Amerecaunas/EEs, though not lavender, and think the world of them. They have all been good layers, and very sweet natured. I also have a Barnevelder hen, which lays dark brown eggs, though not so dark as the Welsumer, and has proved to be a good mother.