Your legbar girl is looking good. Should have a nice tidy crest. Looks like she'll grow up like my girls, not too big, but fluffy and chunky looking.
The Next pic is definitely a mix of Legbar and Dark Cornish (I never had the Legbars and Brahmas in the same pen, and it would have feathered legs) I can't tell from the pic if it is a boy or girl, and the thick legs are a cornish trait, so you can't go by that to tell. I will be fascinated to see how that one turns out. I've never hatched any of those.
Third pic is anybody's guess at this point. All I can say at this point is it isn't pure legbar. It's kind of an odd angle. You can see the coloring pretty good, but not any of the proportions that could be a clue. The barring leads me to think it will be a boy also, but I can't really tell here either.
That makes sense, those two are built like wide little spark plugs so that would align with a cornish cross. The legs are massive and the combs are pink on both, I guessed pretty early that they were both boys and was unfortunately right. I can't complain too much, I have had a very high pullet ratio on chicks in the past. I too am interested in seeing how they feather out, but will only be able to keep one of them.
So Dark Cornish/Legbar cross cockerel available to a good home!
The thing that always seems to surprise me about the cornish is how compact and heavy they are for their size. With their tight feathering, they look so small, and then you realize there is nothing hidden in fluff like there is on other breeds.
I have really thought about adding them next year. Wonder how the roosters temperament is? Its going to be a heritage bird for sure, doubt I will raise CX again.