Ooh, Madoka got me back into watching Magical Girl animes actually (I had fallen off for years...). I really think that the Selector series is a good follow up for a Madoka fan. It is very different...card based...in a Yu-Gi-Oh! kind of way, but has the same kind of twist and darkness hiding in the background. It really pulled me in. If you are interested, give it a try sometime. But truly, not all Magical Girl series can be judged on the same playing field. Some are dark and some are not.