Full list for the whole year is
here. If I had to describe each of the top 10 in a sentence (or two)...
1. Mouretsu Pirates - A supremely fun and intelligent sci-fi that fuses a bishoujo-heavy cast with a classic space opera storyline , takes the idea of "legal pirates" seriously, and manages to execute everything flawlessly over two cour. Best new character and best new seiyuu of the year in Katou Marika/Koamtsu Mikako.
2. Hyouka - Deftly utilizes mundane mysteries as vehicles through which the characters uncover as much and more about themselves and their relationships with each other as they do about the tricks they're unraveling. Hands down the most gorgeous production values of the year as well.
3. Hidamari Sketch x Honeycomb - Four seasons in, Hidamari-sou feels like a second home, and the girls who live there like a second family. It is deeply soothing, funny, and above all very sweet to see how each character cares for, and gets support from, the others as they try to discover what they want to do with their lives and who they want to be.
4. Chuunibyou Demo Koi ga Shitai! - A story of equal parts drama and humor that teaches us that there's more to growing up than conforming to societal norms, that "normal" is usually the most fraudulent persona of all, and there's a little bit of a chuunibyou dreamer in all of us - so perhaps we should let them out once in a while. We might just enjoy it.
5. Girls und Panzer - [see previous comment]
6. Dog Days' - Much like the main characters visiting the fantasy world of Flonyard, the one and only objective of Dog Days' is
having fun and if plot isn't needed to achieve that, discard it. The cast is huge and every effort is made to highlight as many of them as possible, primarily though battles that serve as like friendly international sporting events.
7. Yuru Yuri♪♪ - Similar to Hidamari Sketch but heavier on skit comedy and lesser on the soothing "iyashikei" atmosphere. Ridiculously cute, with impeccable comedic timing from the seiyuu, and last but not least, yuri!
8. Saki Achiga-hen - While not as action-packed with supernatural, over the top mahjong insanity as the main series, like the first season it features a large cast with ample focus on characters outside of the titular team and all the youthful passion of a sports anime without being about, well, a traditional physical sport (as those are a bit of a turnoff for me). Oh and yuri here too of course.
9. Jinrui wa Suitaishimashita - Dry humor, surreal wit, and morbid observations about the ridiculousness of society in a world where humanity has declined and child-like, well-meaning, insatiably (and dangerously) curious "fairies" have become the dominant life form. All delivered in brilliantly snarky deadpan by Nakahara Mai, the voice of Watashi.
10. Ano Natsu de Matteru - Top notch teenage romantic drama, probably the best pure romantic drama of the year, as expected from Nagai Tatsuyuki of Toradora. The little callbacks to Onegai Teacher are also fun.