Oh, I might have to go check out the swap!!
I think starting with chicks is cool, because they are so darn adorable,and they do grow fast. But they are harder to take care of. andmore to worry about keeping them safe. I was actually thinking of selling my hens, and starting fresh with some babies. I want different breeds. I know sometimes you will find in the Guide someone selling off hens, but honestly, if you don't really know them, they could be dishonest about the hens age, and you could be getting some old, wornout layers. (Which is fine, chickens are cool, but if you want the eggs they might not be producing alot)
Normally, different breeds get along fine together. I think the Polish are picked on because of their fluffy head feathers. Plus, they can't always see as well because of their feathers.