Too much Gurren Lagann and not enough Gunbuster. Gunbuster is not only the better series, but it's also only six episodes so you don't have to spend too much time on it, and it's still incredibly relevant despite being made in the late eighties. Also, you'll never really truly "get" Gurren Lagann or Evangelion if you haven't seen where it all came from, and pretty much most of the stuff Gainax has done can be traced back to Gunbuster.
Also it has a 250 meter tall robot doing alien armada crushing flying kicks, what more do you want?
Also, Magical Project S. If you want to understand the magical girl genre, watch this and not Madoka. Madoka's a good show, but it's not a very good representation of the genre as a whole. >.>