Raw is best. And yes, stay away from A1, Holstein cows, the black and white ones.
I'm not lactose intolerant, had a test done. Switched to raw goats milk (which is A2 casein) and still experienced bloating and discomfort. I feel fine on small amounts though...but ever since cutting out dairy completely, I've lost the extra bit of flab around my waist, total of 8 lbs....like I've lost an extra set of skin.