Opinions on the following anime?

I personally adored AIR TV as it is my favorite KEY anime. It's quite emotional and can get heartwrenching at points of the series. It is only a 13 episode series so I will warn that there will be a lot crammed in to such a small amount of time, including two subplots and a flashback to feudal Japan.

I have not seen Hyouka.

Angel Beats! is a nice series however, I think it could have been placed at a better pace. It was too short and needed more episodes for all the members of the large cast. However, for what it was, I liked it. It had a great cast of characters and did get quite emotional at times as well.

-Yes, KANON 2006 was based on an adult visual novel HOWEVER, the anime has no ecchi to speak of. Yes, it is a harem, but I actually slightly prefer this series over the CLANNAD series. KANON 2006 was an emotional roller coaster for me as it did deliver laughs and tears, as I had expected.