Pani Poni Dash "Roulette Roulette" - 8,5/10 - I like that song, it's silly and funny enough to keep me listening ^^
Canvas 2 ED - 9/10 - as someone correctly stated, having watched the series helps a lot enjoying this song (at least for me)
Azumanga Daioh OP - 8,5/10 - One unforgettable tune ^^ ... though I like the ED better
And since the ED doesn't seem to have been posted:
Azumanga Daioh ED - Raspberry Heaven
Kimagure Orange Road - ED 1 - Natsu no Miraju (Summer Mirage) - To me this is *the song*, as far 80's anime are concerned ^_^