Your feisty rooster will generally favor one hen over the others, she will be the top hen. She will peck the other hens some and maybe chase them away from the food once in a while. She will be the one singing the loudest and longest when she lays an egg! In fact, she will probably be more...
I am in KY but I have five "Buckeye" hens who will be one year old next month. I chose them because they are great egg layers and very cold hardy (and good mousers). I just joined BYC today and am very happy to meet you!