I would recommend choosing it for the individual goat, to make sure you like it's personality. That's the only advice I can give as I am also trying to choose a breed.
I am planning to have goats soon, but I don't know what breed. I am looking for goats who are:
1) inexpensive to feed
2) not huge
3) friendly
I want them mostly as pets and weed control, and no longhairs