I make my dolls' personalities unique, but keep some traits that American Girl has made for them. Here is a compare and contrast from my Josefina to American Girl's Josefina.
My Josefina:
Name: Josefina Sierra Montoya
Hobbies: sing, play with my dog, do yoga, garden and paddle board
Favorite Color: Red
Pet: Hoppy the chick and Dixlyn the sheepdog
American Girl's Josefina
Name: Josefina Montoya
Hobbies: Playing piano, learning to be a doctor
Favorite Color: Vibrant Colors
Pet: Sombrita the goat