Hen.
Think of how much cheaper it is for starters.
And it was said in one of the incubator threads, its natural for them to hatch into a dark warm safe place under mummy hen, not into a big bright incubator with wire under their feet.
What would you rather, to be raised with your parents, or the be stuck in a both where you had warmth and shelter but no mother. Think Maslow's self-affirmation triangle.
That being said though, Mama hen can only do so much, shes not a machine, and most importantly, she isn't going to let you anywhere near her babies unless she wants you there. Bonding could be ... problematic.