Cow's milk is really much harder on the system for several reasons - hormones given to the cows, pesticides & other things added to the grass where they graze (or that comes from runoff from other nearby farms), and the enzymes in it. Yogurt has other things in it that help the baby digest it. In fact, many nutritional authorities will tell you that the purpose of cow's milk is to turn a 150 pound calf into a 700 pound steer in 6 months - it's not necessarily essential to kids or adults!
A lot of the allergies people experience (lactose intolerance, other food allergies, even asthma and many other conditions you wouldn't think of) are diet-related. Many of the cancers, and certainly the heart disease and diabetes, we are experiencing at record rates have to do with dietary imbalances and deficiencies.
What are the reasons you want your daughter to go on milk? Once you identify those, you will better know how to make a decision.
If it's "nutrition" then why use something that you already know can cause problems? If it's "nutritional and convenience", then why not consider a delicious and balanced supplement that takes the worry out of your child getting what she needs, especially as her body grows and needs more. Proper supplementation (no pills, no drugs) can give her all the nutrients she needs without worrying about the deficiencies in our food supply. Even those of us who "eat right" need to supplement - the AMA and even celebrity doctors like Dr. Oz agree - so it just makes sense to choose the best, most absorbable (bioavailable) and balanced supplement. I'd be happy to share more if you are interested.