Lots of great series of anime this season!
My favorites will be (by ranking):
1) Tasogare Otome x Amnesia
The art direction, drawing, characters, and perspective are really good.
Story is even better, as I have read the manga till the latest chapter, interesting romance, drama, comedy series.
My number 1 favorite of this season, hands down.
Another romance comedy and a moe girl to boot, guess I'm a sucker for type.
Highschool guy prefers a zombie girlfriend, and due to unfortunate event, a lady died and turned into a zombie (gasp!).
Quite interesting too, find out for yourself!
(I read the manga already too lol)
3) Accel World
It's by Sunrise, action-romance and sci-fi series.
Will say the "Guilty Crown" of this season, but probably with better story and lesser loopholes.
As usual I have read the manga already.
A mature, action-sci fi series for this season.
The manga has been ongoing for many years already.
5) Medaka Box
Done by Sunrise, and manga was written by Nisio Isin, who brought us the Monogatari, and Katanagatari series.
Can't probably miss this!
6) Mysterious Girlfriend X
Started off very interesting due to it's theme, but get kind of draggy (manga) in the middle.
But still a good watch/read nonetheless.
7) Polar Bear Cafe
Very LOL, parody type of anime, revolving around the 3 main character (animals). Polar Bear, Penguin, and Panda.
It's an ensemble cast of voice actors though!
Jun Fukuyama (Code Geass), Takahiro Sakurai (Code Geass), Hiroshi Kamiya (Gundam 00), Ono D (Kuroshitsuji), Aya Endo (Macross Frontier).
Last but not least, though I have not watched it.
But Eureka Seven: Astral Ocean, serving as a sequel to the original Eureka Seven series.
Not sure how it will fare, but it's produced by BONES, it should be decent at the very least.
On another note, I have started to use my Twitter and Google+ more oftently now.
Do add me over there!