Evangelion, guys? Seriously? Unless you were expecting some gigantic fucking epic battle or something at the end, I don't see how you could've been disappointed.

Worst anime I've ever seen is Tsubasa Chronicle. TRC's my favorite manga, but the anime COMPLETELY strayed from the original storyline. There were too many fillers (I stopped watching when the Fay/Chii episode came out, because, come on, wtf), and the animation was just the worst. The only good thing was the choice of voice actors.