Lack of Endings:
Legend of Basara and
Angel Sanctuary. I LOVE these series a lot. So why do I say their endings suck? Simple.
THEY DO NOT HAVE ONE!!!. Angel Sanctuary was cut off at the end of a chapter at least, which is far more than I can say for Legend of Basara, where
the last episode was the start of the next chapter!!! and then just cut it off. WTFing Hell!?!? If you're gonna abandon a series, at least make some effort into a short-cut ending
Crap Endings:
Rayearth 2: They broke a key rule, directly against what happened in season 1. CLAMP, you need to know when to end something, Rayearth should've been left as over at ep.20.
X/1999 Movie: Another red light for CLAMP. What they were
trying to do wasn't bad, it could've been a great tragedy. The execution absolutely sucked though, and tends to leave you laughing at the blatant over-dramatics.
Evangelion TV series ending 1: When you try to pass everything off as a bad dream, and also do some of the last scenes in crayon, it is official, you suck. All these juicy and epic plot items they have just itching to be abused... are just ignored, dropped, told to go home, and not used. Now, at least this wasn't by their choice, they lost funds and went through a fire that resulted in a desperate contingency plan.
Vampire Miyu TV: OK, clan of bird was just plain dumb,
and caused
key inconsitencies with the OVA, whose story was better and darker, though arguable less fucked up. Reiha
SO saved this series, if she wasn't there, it would've
really sucked. The majority of episodes, being self contained stories most of the time, have much better endings than the series itself. That's sad. I'd strongly recommend the series for the individual episodes, but definately not for the series' main plot.
Weiss Kreuz TV: I second Hakura's opinion of this series a lot. Yeah, the 4 main C designs are cool, the premise is kinda cool... but once you are past like ep 8 or so, good grief does this series turn to crap, and fast.
Ho-hum Endings;
Record of Lodoss War OVA: It's a really nice ending, and an absolutely gorgeous series... but it is a typical ending, hero saves and gets girl. Let's face it guys, the problem with this ending is that Parn is a weenie and would never have one in the battles he faced if he didn't have the nametag of "hero" in the script. I could drop a spoiler to further back this up, but won't out of courtesy ^_^.
The endings that leave little impact on you are hard to remember, thus I can't think of many examples off the top of my head.
Awesome Endings:
Evangelion TV series ending 2: Epic, awesome, rectified. I don't think I need to say more, and if I were to, I'd be dropping several spoilers.
Rayearth 1: It's a funny juxtaposition with Eva and Rayearth here, but anyway, very tragic, excellent plot twist, and moving. All the elements that make an ending great. As mentioned, CLAMP's only problem is not knowing when to quit, Rayearth 2 sucked.
Vampire Princess Miyu OVA: Ah, dark and twisted, the ending here sent shivers down my spine the first time I saw it.
Boys Be... : Absolutely gorgeous, touching, and something that I could relate to more than any other series I've ever seen!!! Definately struck a major chord with me in the last ep.. Stunning.
Shoujo Kakumei Utena TV and Movie: I like the ending to the TV series better than the movie, but the movie ending was a lot of fun despite the messed-up-ness of the last 15 minutes, so I have a high opinion of both of them, plus the movie is the most gorgeous animation I've ever seen to date. The TV series was really dark, with love and betrayal and friendship and manipulation and courage and hanging on to that last bit of hope.