That's odd. All of my RIR and Barred Rocks combs didn't flop over until at least 4 years old.
I wonder if your birds didn't come from a line that had overly large combs in the hens and male line?
I'm sorry but I'm going to have to disagree..
I think the first one is a Barred Rock. My reasoning is that she looks like a fair bit older than the others. As the hen ages...her legs bleach out from giving the yellow pigmentation to the yolk.
1. Barred Rock (If an older bird...she looks...