Generally no, but I have heard attempts at crowing from some. Not full out crowing though. You can order the females from most hatcheries if you want to be sure to stay undercover.
Many believe that the hens taste better. I have to say that they do seem to taste stronger, and I do like them better but I like the boys too. Most hens will not get to be the same size so if your looking for a big chicken to do whole you want some boys. The females have more even thickness to the breasts so they cook better on the BBQ, the boys are thicker in the center and so the outside bits are overcooked by the time the center is done.
Many believe that the hens taste better. I have to say that they do seem to taste stronger, and I do like them better but I like the boys too. Most hens will not get to be the same size so if your looking for a big chicken to do whole you want some boys. The females have more even thickness to the breasts so they cook better on the BBQ, the boys are thicker in the center and so the outside bits are overcooked by the time the center is done.