I would worry more about the possibility of ending up with a mean rooster (of ANY breed) rather than a certain breed itself. I've never heard any one suggest that some breeds are more aggressive over others. A chicken is a chicken - Ooops maybe I shouldn't have said that. ;-) I think it's more in how they are raised that depends on how friendly they will be with you and by friendly I really mean how less skittish they will be around you. For example, the more they are held as chicks, the less likely they are to run from you in the yard. At least that's my experience with chickens the last couple of years.Oh my, so many replies!! Thank you! I believe the thought was that the Rhode Islands may harm the baby, who will be toddling by the time I finally get this project going! And yes, he will grow up around them because when we are outside, they will be free to roam the yards. I don't think the person meant that they are particularly evil, just a more aggressive and maybe protective breed? Anyway, I have just been looking at many breeds and hope to find some lovely ones with nice eggs. I eventually would like to brood some of my better hens. I would absolutely love to get pointers from you locals, maybe even visit your coops so you could show me some of your tricks of the trade?