When I started crocheting the amigurumi dolls, Ellie said I should do all of the Star Wars ones first. But then we decided to start a rotation with the Frozen dolls for her and the Disney Princess dolls for Cece. First up was Elsa (of course!). I am really glad I started with the Star Wars dolls because Elsa was much more complicated. I might not have gotten very far if I started with her.
pattern from a Frozen crochet kit I bought at Costco a while ago; also available on Amazon