I shouldn't really vote until I have Laetitia's in my hands, but I voted for Iris. Don't care if it's too similar to the McMenamy cover it was a homage to - Iris looked stunning, and when I got it in real I literally couldn't tear my eyes away.
Aside from Anja's, and Scarlett's which was a little uninspired, this year has actually been great for VP - lot's of different kinds of covers and a bit of experimentation with the Carine aesthetic...