Anime:
-Ouran High School Host Club: A HUG? Just a freaking HUG? You must be kidding me. It should have ended somehow like in the manga, but with a little twist. (Oh wait... the manga was still running by that time, hehe oops).
-School Days: I feel so... depressed. I wasn't expecting that. There was a nice boat, but I don't like sad endings. Matoko should have stayed with Kotonah, sorry, I don't like threesomes D:
-Love Hina: In the manga *super duper spoiler* Keitaro and Naru get married -.-, not fair. The anime should have ended the same way.
-Ah! My Goddess: "...I love you..." *Fainst*, the end -.-. No freaking kiss, no freaking proposal, no freaking wedding. And yet, Belldandy and Keiichi will somehow stay together forever.
-Itazura na Kiss: Meh, it wasn't that bad, but I wanted to see what else happened with "their" daughter (forgot the names... tehe).
-Onegai Teacher: Too short -.-. And it seemed like a regular episode, not an official ending, I don't know how I would improve it though :3.
-Inuyasha: Uhmm... who am I kidding? I actually loved this ending! Sango and Miroku, how much fun are you having OR planning to have? ;) And ROFL @ Kagome: "Onii-chan!" *Seshomaru stares...*. Yeah, I'm trying not to spoil anything.
Manga:
-Ouran High School Host Club: Just ONE single chapter about the host club's future , ONE please. The ending was beautiful, but I wanted moar T_T, for me it wasn't an actual ending. It would have been better if 10 years passed or something like that, and the characters' lifes as adults were shown.