But my own favorite shows are Chihayafuru, Kimi to Boku, Ben-Tou, Guilty Crown, Haganai, and Last Exile. Mirai Nikki is pretty powerful, too.
Anyway, here's the list, in alphabetical order, with some comments:
● Ad-lib Anime Laboratory -- Katou Emiri, Fukuhara Kaori, and a guest (Sakurai Takahiro and Kobayashi Yuu, so far) ad-lib lines from which a short anime is then made. Highly enjoyable for watching the seiyuus work, but the anime produced aren't that interesting.
● Ben-Tou -- Absurdly hilarious story about supermarket battles over half-price bentos. No, really. Yuuki Aoi is terrific as the fujoshi battle-watcher. So is Kayano Ai as the vicious class president. Good work also from Ise Mariya and Shimono Hiro. Sleeper hit.
● Boku wa Tomodachi ga Sukunai -- Friendless misfits of various kinds create a club whose aim is to make friends. Funny and well produced. One of the most popular shows of the season.