In addition to my Easter eggers I have golden comets, barred rocks, buff orp's, and ameraucas. It's a nice mix of colors and personalities. The buff orp's are very relaxed, quiet and docile. The comets are very social, loud and chatty, however they were first to strongly enforce the pecking order when I introduced my new ameraucanas recently but no huge altrications. My barred rocks take up middle ground between the comets and buff orps- not too loud or energetic but not too quiet also... Plus they are visually striking with the black and white. The ameraucanas seem shy right now but I think that's because they are new to the group and still settling in.
As far as egg production- my comets give me darn near an egg a day since they started laying. Ameraucanas are right around that too. Easter eggers give me 4-5 a week per bird, barred rocks and buff orp's give me 3-4 a week. All my birds will be 1 year in April and I use supplemental light.