I've read pride and prejudice, sense and sensibility, emma and persuasion, and so far I prefer persuasion. Anne's thoughts are very present in the narrative. While it may be hard for the reader to understand how anyone could put up with such an annoying (and unfair) sister and father, and rather snooty best friend, when we see it from Anne's perspective, we understand a bit more about suffering and regret. It is a keen study of how the best of us can still make mistakes and misjudgements.

With the bit I know about Jane Austen's life, I like to imagine that Persuasion was also written with a touch of her own experiences. Almost like a wish fufillment kind of thing, because the ending where Fredrick and Anne are finally together is a sweet ending, with a very mature passion.