I have leghorn, jersey giants and silkies. I have a few each of white, brown and silver leghorns and to me each color has a separate characteristic. (My silkies are kept totally separate since their pretty much defenceless and would be predator candy so they don't get to free range.) My silver leghorns seem to be more nitpicking about roosting with strangers than the white or brown.
I've played chicken jenga so I feel for you and my kids think I'm a little crazy getting so involved with the pecking order! LOL! After seeing the aftermath of a flock of chickens turning on one of their own I do my best at keeping the peace.