I voted for #2, the Capri Royale! I am partial though since it is my dress too and I'm in love with it. I can't wait for it to come, it should be here in a few months and I am so excited to try it on. I chose it because I wanted a Maggie Sottero that had some sparkle on top, a corset back, and a pick-up skirt. This completely fit the bill and the second I slipped it on I knew it was the one. I even kept looking for a while after that and no dress even came close.
I think #1 is very pretty but I agree with others that it looks like a 2 piece, which I don't care for and I am not a big fan of the sash thing. Also, the skirt has pick-ups, which I love, but it looks messier... too messy. I like the more even look to the Capri Royale.
I am not a fan of #3 at all, sorry!