I made the following today from McCall's Crafts 3275. The fabric I used came from Mama Wiebenga.
The pattern was very easy, and I didn't make any adjustments to this one, like I have the others.
While the pattern fits American Girl dolls, I think McCall's patterns fit better on dolls that represent younger girls, like 4-5 year olds. The American Girl dolls represent eight and nine year olds, so the body is slimmer than it would be on an 18 inch doll representing a younger child. As a result, the dress is baggy on this doll.