Heero_Yuy84 wrote:Read or Die
I'll second that one... great OVA series.
Otherwise: Eva, Lain, bla bla bla. Jungle wa Itsumo Hale Nochi Guu is great. Anything I can sing all the words to without reading the titles (currently: Slayers Next, Slayers Try, Fruits Basket and Eva). A lot of people seem to like Wolf's Rain's OP, but it never really caught me.
Incidentally, my local anime society runs end-of-term quiz nights. Opening / Closing songs are always a popular topic, eg:
"How many English words are there in the intro to Initial D?" [shudder]
"How many people are there in the final scene of the Kodocha opening?"
"Which series contains [English lyric X]?"
The hardest question we ever had was:
"How many sections are there to the first Ring in Geneshaft?" [team with closest guess gets the points]
The questions on which I scored the most points on were the 'Slayers character hair colour round' and anything relating to Tiny Snow Fairy Sugar 8)