The Super Mario Galaxy series is seven years old, with the last installment coming four years ago. Doesn't that make you feel old? Anyway.... I personally love both games. Innovative levels and a whole lot of fun. I do believe, however, Galaxy 2 improves on a lot from the original, while adding so much more (slightly better soundtrack, Yoshi!, more stuff with Green Stars, etc.). But, the first one had a much better hub world that's up there with Peach's Castle and Delfino Plaza as the best in the 3D Mario games. The first one was great, but something about the 2nd is even more special. I know a lot of people prefer the 2nd but I've heard some argument for why the 1st was better. I'd like to hear everyone's opinions on them.