I haven't seen this one but I've heard a lot about it. But, I'm kind of over all the vampire hype and stuff so, don't think I'll watch it any time soon.
AKA Hell Girl. It's available on netflix. I watched it a long time ago, but it's not really very scary to me, and I don't know, I always felt like something was missing from it.
Haven't seen either of your comedy suggestions. I'll give them a look later on.
High School DxD
I can't stand this one. I used to love it. The first season was great despite the cliche's it was still pretty funny at times, and it wasn't over the top. And I liked the sacrifices he made for the female MC. But season 2 was all downhill. Too much "Engrish" move names and just overall corny. That's why I didn't include it in my list.
Steins;Gate <3 <3 <3
I tried watching Steins;Gate before, but it was so dry and so slow I just couldn't get into it. I keep meaning to give it another try but I haven't gotten around to it yet. But I've heard a lot of good things about this one too.