they all die or they all are happy at the end...i dont like the happy ones because they ever end good. the ones that every one dies are more fun to watch.

That's not entirely true. They don't all have to die or be happy in the end. Take Rozen Maiden: Traumend for an example (since I just recently finished watching it) Not all of the characters "died", and they are not all happy in the end. I can't really say much without spoilers...

And I just like any ending that satisfies. I hate series that answer half of the questions given in the beginning and add another 20 more questions at the end. Basically, I dislike it when there's potential for another season, when everyone knows that that was the end of it. Like Trinity Blood, Loveless, & Gravitation.

i watch rozen maden a while ago, theres 2 season of it if u did not now

also i have the intro 2 the 2nd season on my site

well I would say for me I love the HAPPY ending of anime series or even manga and also in the movie bcoz I have peace of mind when the character that I want is safe or in gud and contenting bcoz not I know the journey is fulfilled.