Hello and Welcome To BYC! You might like to post in the What Breed/Gender forum for more imput https://www.backyardchickens.com/f/15/what-breed-or-gender-is-this How old are they? That color pattern in EEs usually means female, they all do look like pullets so far.
12 weeks
I have two that I know for sure are roosters, I'm going to keep my black Australorp roost but not the golden sex link rooster. Not sure about these two, they are suppose to be Amerucana but I think are EE.
Definitely post this pic in our What Gender section for help with the sex. As for Australorps, they are very high on my list of must have in your flock breed!! They are very docile, friendly, great layers, very hardy over all and love attention. My girls are huge on lap sitting and just love human contact.
Welcome to BYC. You have EE pullets. If both roosters are equal in temperament, I would keep the Australorp; otherwise, I would keep the least aggressive/obnoxious.