Now that I had the time to sample most of the new series for this season, here's my thoughts on each of them.
High school of the dead: Zombies, pantie shots, gore, zombies, boobs, more zombies... how could it go wrong? good potential and nice animation as a bonus.
Stream on Anime Network
Ookami-san to Shichinin no Nakamatachi: Episodic, very little character development,lack of a main plot, stereotypical character and the narration is really getting on my nerves. Will probably drop it soon.
Strike Witches 2: Direct sequel to the first season and still no pants. More of the same so if you liked season one, give it a try.
Stream on Crunchyroll
Shiki: New neighbors, a remote town, cicadas, mysterious death... sounds familiar? There's a distinct Higurashi feel to this one. I'll need more episodes for a better idea of where this is going but looks promising.
Stream on Funimation
Amagami SS: Romance anime based on a dating sim, not much to say here. If you like romance you might like this one but I'm worried of their idea of doing the story from the perspective of the different love interest without a central plot. We'll have to wait and see.
Mitsudomoe: School/comedy. Got some potential, made me chuckled a few times during the first 2 episodes. Although they are in 6th grade (but look like 5 years old) The humor is definitely adult. Makes me think of a mix between Lucky star and K-on with violence and crude humor.
Seitokai Yakuindomo: One-liner, adult humor centered around sexual inuendo, very little character development, no central plot... serious candidate to be dropped soon but some might like it.
So that's pretty much it for what I will be following this season. I still have Seikimatsu Occult Gakuin to check out but the 2 main contender for keeping my interest till the end are Shiki and Highschool of the dead while I will probably give a serious chance to Mitsudomoe. The rest will probably be dropped at some point unless they drastically improve over the next few episodes.