the stella looks larger, but i think the large mp can fit more stuff. like another poster said earlier, the stella is narrow, so if you stuff it with too many things it'll be unbearably heavy and the bag will bulge out making it uncomfortable to carry. i love the flat straps though. the large mp, while also heavy, is a wider bag and can fit more. it really depends what you need the bag for. if it's for work and school and you plan on carrying a small laptop, books, or files then the stella is the bag for you. personally, i like the large mp better for casual everyday wear.