I've just recently started watching Japanese animes and this is the one that jumped out at me right away. Lots of great action, silly comedy, and talking stuffed animals. Whats not to like? I've also wanted to watch Blood+, but haven't gotten around to it yet.
I guess I prefer dubbed episodes, because, well, I'm too fucking lazy to have to read while I'm trying to watch the show. Unless the American dub sucks and they try too change a lot of shit, like they did with the Yu-Gi-Oh series.
Battle Angel Alita has to be one of the best seinen manga I have ever read. It isn't over-sexualized, which is surprising and refreshing when the main protagonist is female. The violence/action is actually done right when even it's being over-the-top.
I desperately want James Cameron to do a BAA movie. He is very passionate about it and from what I've heard, very very faithful to the manga. Pretty sure it would be a very asian cast too so none of that "white chick plays japanese girl" shit.