kouchanonioi

Eva opening is all-time and unsurpassed, of course, along with everything by Satoshi Kon, especially the opening animation from Paprika. Susumu Hirasawa made some of the most awesome music ever to be featured in modern animation. More recently, I've really enjoyed the Denpa Onna OP, as well as Otome Youkai Zakuro, which has really great music for a slightly run-off-the-mill anime.