Space Brothers(Uchuu something or other) has been my favorite thus far this season(disclaimer:haven't watched any Zombie yet). Accel World has been pretty good so far as well.
So, I haven't actually watched anything this season yet. I plan on catching up on Kore wa Zombie and Nazo no Kanojo X... but are there any other ones people would recommend based on being about halfway through the season now? :D