Thanks every one! I'm happy to hear that the BO most likely is a pullet, she's my favorite and I was worried about her turning into a roo.
I don't think the dark cornish is a roo, I don't know why the comb showed up so pink looking in the first picture, but normally it looks like the others. But I'm glad to know what they are, it was driving me crazy because I had all the others IDed.
The two SLW in question all have tail feathers just like the others and the legs do not appear any bigger than the others, but around 2 1/2-3 weeks old, their combs were much pinker than the others. I will get a picture of them on the ground so you can see them better.
Thanks!