THIS STATEMENT HAS BEEN CORRECTED.
I own neither. However, I own an Alesis MasterControl and Presonus' new SL Series 3 [which for some reason they sold prior to activating DAW functionality!]. Still, I started my home studio with an old Fostex R8 and a small studio-capable analog mixer [it wasn't fun mixing prior to automation] and have tried many similar products and not to make light of your question but you're asking whats better, peanut butter and jelly or a steak. Both have the ability to satisfy your hunger but one is elegant and filling. If you're a hobbyist or looking for general recording capabilities... Faderport is for you. If you want your skills to develope and maybe advance a hobby to a career... the CS or perhaps the SL Series 3 is for you. In the end the value isn't the cost but what you may create from it.