Soy milk for boys? Any mom's out there giving soy to your baby boy's?

Hi! I am just finishing feeding...my son will be 1 yr old, and we are now debating cow's milk, rice milk, and soy. My daughter did soy fortified with the DHA and Omega. She was very sensitive to cow's milk, as was I as a baby. I am nervous about cow's milk in general, especially with all the autism controversy. My doc says soy is fine for him, but I read that soy increases estrogen levels, and obviously that would not be good in a boy. So...I am confused!