Fine, since this is obviously gonna degenerate into typical /a/ nonsense, I may as well take the time to put out some of my own opinions.
-Ghost in the Shell (for me, it has to be the movies), for futurism and existential philosophy
-Miyazaki's movies in general, but especially the Nausicaa manga, Totoro, and Princess Mononoke
because they're beautiful, have good themes, and/or just lift the soul and make you happy without having to rely on fanservice and crude jokes
-Akira for its bold direction, and the overall post-apoc feel
-Makoto Shinkai's works, for the heart tugging and artwork (and fucking almost completely solo work on Voices)
-SZS: because almost no one does parodies and/or black humor in anime, much less in TV/film in general. And it's good too, imo. Characterizations aren't terribly complex, but what the hell, it's a parody. Loved the tsundere gag with Ai and Itoshiki-sensei dividing everything into science, culture, and sporty
-NHK: because hikki's are a controversial but real topic. And something /a/ can especially relate to, heh heh.