One is more playful and entertaining for members, than professional, and the other is an attempt at professional, though is far from refined and useful, has a lot of bugs, and is being updated in a month, which was 18 months ago, or more, now. (Correct me if they've updated it in the past year)
Neither one comes close to XF conventions and professionalism as a viable option presented professionally without major issues, integrates fully with XF user permissions and allows users to have their own blog with full permissions on who does what with it.