Healthier to drink regular milk or soy milk?

Soy milk has isoflavones which is popular for reducing cholestrol,preventing many types of cancer and osteoporosis,reduces menopausal symptons.It is rich in Vitamin B and E.Only drawback is that it lacks calcium which is present in cows milk in good quantity.But that can be overcome by having other calcium rich food.So definately health benefits of soy milk is more than cows milk.