animation in elfen lied was one of its high points. it's a pretty violent and risque show though, so if you expected something else, well....
if you still like that kind of thing but don't want naked ladies killing everyone in the process or most of the drama that comes with it, Hellsing Ultimate is what you're after. if you're a lover of violence, you will absolutely find it becoming one of your favorites.
otherwise, Baccano, Gurren Lagann, hell Haruhi if you're still in an experimenting mood. Haruhi's nothing like you've seen yet. but if you're trying to stick with the more standard action-y shows, then yeah, Baccano!, Gurren Lagann, Durarara!! are some shows you should check out. in that order. <_<; do mind the first one needs you to get past the first episode a bit, but a few eps in and you will be hooked as you start to understand what's going on. if you want more story to be in there with your action-y stuff, i'd also consider The Twelve Kingdoms. very good show, that one.
if you JUST want actiony stuff, Sengoku Basara anime.
but nothing tops Hellsing Ultimate in terms of just plain enjoyable violence and a badass.
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The King Wang.
Listen up Urinal Cake. I already have something that tells me if I'm too drunk when I pee on it: My friends. - Colbert.