Chooks--I can only imagine how rough it is to have to decide which one to keep. And I never knew NN's are rough! I've always wanted one. You're lucky in the fact that you have older hens to keep them in line. I only have the one older hen. And I hear ya about the constant harrassing!
I do have to admit bantam Cochins are the bomb. So goofy, and so full of personality. Mine are all so spoiled too, honanbm! It's disgusting! And I agree, I care more about my girls too, than one punk roo. I'll give him a shot at it though, but if he's still this bad when I do put them together again, he'll have to go.