When roasted correctly, chicken breast with the bone in will be juicier and more flavorful than boneless. The skin doesn't hurt either. To keep chicken breasts from drying out, you really have to pay attention to the internal temperature. You can't always tell by looking and size can make a difference too. An instant read thermometer will tell you when the inside of the chicken is perfectly done, not overdone. Look for an internal temperature of 165ºF.