So recently i watched Neon Genesis Evangelion, and throughly enjoying it when i noticed something.
Most anime/manga fans in america are not mature enough for story that is not a pretentious pseudophilosophical power fantasy (cough Berserk cough, seriosly Guts is actually far better described as whiny than shinji, in the anime series Shinji does not generaly openly display any suposed bitching). Also that main trio of characters (Shinji, Rei, Asuka) are very similar to characters in elfen lied (specifically Kaede, Kohta, Yuka, and Nana ) mostly visualy but also in personalities to certain extent
Kohta looks a bit like Shinji but does not share shinji "Wants to do good but is too mentally weak to commit it " personality, (at least in the manga, i didn't watch anime beyond first episode)
On the other hand Lucy and Asuka share a lot more than long haired horny Tsun(in Lucy case half Yan)dere, Both become Abusive as a result of traumatic pasts (asuka verbaly, Lucy murderously ), Lucy also has a bit of Rei in her in her generally emotionless nature, and devotion to people she loves (kouta and aiko) albeit it is far more healthier than in Lily jr case.
In case of Yuka and Nana the similarities to rei are also almost only based on apearance, albeit nana is essentialy anti-rei
There are three other simmilarities other than main characters:
Both series have a lot to do with love: arguably the central theme (or one of major) of Neon Genesis Evangelion is mental damage caused by lack of parental love, while arguably lucy biggest flaw is her desire to be loved, essentially due to lacking parental love herself
Another similarity is the fact that both Diclonius Research Facility and NERV are pawns in hands of an old man wanting to become god: Director Kakuzawa and Keel Lorenz
And finaly the Vector Crafts, esentially meat mechs like Evangelions
So I think that Elfen Lied is at least partialy inspired by Neon Genesis Evangelion
PS.:Also by the way i am actually Janlor1996 i had to make new acount