Having gone through all three, I definitely think that RfJ was my favorite to play, I liked that I could play pretty well without a damn point meter at the bottom of the screen, and the two routes were pretty different. I do think that story wise DWE is the strongest, though even it has the problem of ending abruptly. All of them kinda do. It often feels like things are just getting started, and then they are over.
It is nice having a complete experience, better a rushed climax and ending than a: "Sorry, no way to advance now. We'll get back to you sometime" that we get in the vast majority of adult titles available right now.
I heard that the author did some other stuff. Is there a list of her works? I have Pandora, which was neat, if again, abrupt.