Polish... I thought I was in love with them until I got some. My white crested black , white crested blue and one buff laced seemed very very fragile compared with all my other chicks, my only chick deaths this year out of several dozen. The surviving buff laced is a nutjob, complete spazz machine, like she forgets who I am until I've caught her and then it's like she's finally caught on that I hand fed, reared and had her sleeping beside my bed for weeks after a rat scalped her. She's just so skittish and gets into a complete panic anytime ANYTHING happens, like run into walls panics. And the poor thing has strange feathers on her wings that are the shape of a stretched corkscrew. Personally, even though they can be very, very pretty and very very unique in the chicken world, though I'm kind of sweet on how derpy she is and the imaginary connection we made while I cared for her, I probably wouldn't invest in the breed again.
Production Reds - Now, I started out with these birds, and have always had a few every year.. some are wonderful creatures, sweet as candy... but some... some are the spawn of carnivorous dinosaurs n only want to KILL KILL KILL! They're beautifully consistent layers, but 99% of the ones I've had have had some sort of major health problem (mostly reproductive) so for the sake of the ones I have gotten attached to, and have had to put out of their misery, I won't be putting myself through it again once my last 5 pass.