I'm no expert, and I'm sure that others with more experience than myself will chip in here, but I definitely think your older pullet is better quality. I think she could definitely compete in a 4-H show, especially if kept in good condition.
I'm not so sure about the new pair. The color on the hen doesn't look quite right to me, but then maybe there is something I don't know. Also, they are not as nice in type as the first one. I wish your daughter good luck. I was in 4-H and my kids showed poultry, too. I'm hoping to be able to get more kids started around here. I think it's a great program for kids.