Which Are The Best American Girl Stories

Okay Doll Diaries readers, I need your input! My daughter is starting to read chapter books and really loves reading. She just finished one of the Tiara Club books (and loved it) and Junie B. Jones is just too easy for her. I suggested we start reading some of the American Girl stories and she is all for it.

What I want to know from you, is which American Girl stories do like best? Which ones are the easiest to start with? Are there any other chapter book series that you enjoyed when you were younger (or if you are a Mom like me, which ones do your kids prefer)?

We have a good assortment of the books already, I just would love some recommendations on your favorites.