Drinking milk raw is healthier IF:
1. You KNOW you animals are disease free. This means testing. They should ALL have three, CLEAN AND NEGATIVE tests for TB, Brucella, Johne's, CL, and CAE. Four of those five diseases are KNOWN to be transmittable, or have been transmitted, to humans. The last one has moved to jumping to other species, so it is just a matter of time before it jumps to humans. Before drinking raw milk, be CERTAIN of the health of your animals.
2. Your milking procedure is clean and sanitary.
As long as these two criteria are met, raw milk is healthier for you than pasteurized milk. Heat treating milk kills the good bacteria and ruins the enzymes that help digest it. Also, some *bad* bacteria is resistant to heat (CL and Johne's being two of them), so it is far better to have tested, clean animals than it is to pasteurize your milk.
If, however, you are not absolutely certain of the disease status of your animals, you should pasteurize your milk, especially if you are feeding it to children. Even though it is not completely effective with some bacteria. Consuming sick and injured bacteria is better than consuming thriving and healthy bacteria, after all.
All of my goats are tested and clean. I have consumed their milk raw for years now, as did my kids, and even my allergic-to-the-North-American-continent granddaughter. We have suffered no ill effects from raw milk, and have enjoyed many benefits from it.