Hm, can you easily wear the Paraty on your shoulder using the shorter handles? That's the only feature that has me leaning more toward the Marcie (functionally) but I really love the Paraty more!
I often wear my paraty on my shoulder with the short handles, but only over a shirt or sweater, they won't fit over a thick coat. At times the outer handle falls off my shoulder, but I still wear it that way because I love the option! I know I have modeling pics of me wearing mine that way in the "all about paraty" thread - look in the reference library, then "all about paraty". I found pictures with it on my shoulder in posts number 66 & 68. I do not have the black one anymore - wah I miss it....it was nice. I just loved the caramel color on me better.