That EE (red and blue) looks like a boy. Those red patches are a strong male indicator in that breed. If your buffs are the same age, I'd guess that the one with the larger, redder comb is also a male.
Well unfortunately my buffs are two different ones lol. They are about 4 months old now. I have a barred rock rooster as well spout of 12 I think I may have 4 roosters.