Digg might be bigger, older, more worth but not as nice as Mixx, The difference is Mixx is not runned by two guys getting drunk all the time.
Mixx’s general users are way more friendly than Digg , Digg users think they own the world and they are way better than any other social network user just because people vote on their items and wooo everyone knows who they are. I would rather join a friendly community where people interact and share things interesting to them than have the status thing as a top digger. Digg users, GROW UP. The world does not turn around you. Oh and the digg button is ugly, it looks like banana smear. The design as well, its green and blue, the two colours that DONT go together according to 95% of professional designers.