So many chicks look just alike. The first could be a Cochin, but can't tell from the photo. Could be a Dark Brahma, but I can't see the comb. When you put up pics for ID, you need to tell the comb type or show it--that makes a huge difference.
You can't ID from just color or feathered legs or not. Maybe you could put more pics up as they feather in. Then, it's much easier to tell.