The survey has been conducted by Japanese anime portal 'AnimeOne' for "Top Spring 2010 Anime":
1. K-ON!!
2. Durarara!!
3. Working!!
4. Heartcatch Precure!
5. Ookiku Furikabutte
6. Giant Killing
7. Katanagatari
8. B-Gata H-Kei
9. Yojouhan shinwa taikei
10. Kaichou ha Meido-sama!
As you can see, fans of Angel Beats! has been aghast at this ranking which I can't agree more... seeing K-On! still in dominant postiton thanks to their "moe" essence is not surprising, but what is more surprising is that Angel Beats!, one of anticipated show in Spring, is not even in the list -_-;;
However, a few of "non-moe" anime were able to make it to top 10 such as "Durarara" and "Giant Killing" which is a bit surprising, considering majority of Japanese otakus favouring "moe blob"
P.S I have a feeling that AnimeOne is trolling... As a fan of Angel Beats!(not biased), it is impossible for anime like "precure" or even "B gata H kei" beating Angel Beats! -_-;; nevertheless, a poll like this has no real value what so ever except showing us "majority" of Japanese taste in Anime

It seems to me that the way of Japanese think about the anime is starting to degrade and now we are moving on to the new era of "moe blob"...
Source: Sankaku Comp.