I’m afraid this reply is not going to help you much when it comes to making a decision … 😊 But I really think it depends completely on what topic you want to get into right now. She has written books on a variety of topics, and as her style is very clear and down-to-earth (compared to Jung), any of her books is accessible, no matter where you start.
Thanks for the overview, I haven’t read any of these books so far.
My favourite Jungian author is Marie-Louise von Franz; her books are worth reading especially if you’re interested in symbolism, myths and fairy tales. She also discusses the individuation process in her writing and has published a book about the archetype of the puer aeternus.