Can't actually think of any I like as much as this one right now, though I do really like "Don't say 'Lazy' which I posted in the K-ON! thread (which you should go post in).
Only thing I got right now is the Valkyria Chronicles ED, but not for the typical reason, the music is pretty generic, but the animation that goes with it is so funny, but you have to be familiar with the characters from the game. That's not even the right song, but I can't find it, so screw it.
YouTube Video
"Women are like sunsets… they’re beautiful, but there will be a different one tomorrow." - Gilder
Rin' - Fuhen - Samurai 7
Rurutia - Selenite - Karasu
Kosaka Riyu - Danzai no Hana - Claymore
Noto Mamiko - Aizome - Jigoku Shoujo Futakomori
Kuroishi Hitomi - Over the Sky - Last Exile
The OP for Last Exile is also pretty good, but I seem to have lost it somehow...
Yukie Kaijura - Key to the Twilight - .Hack//Sign
Not from Anime, but still awesome:
Fiction Junction YUUKA - Bakumatsu Kikansetsu Irohanihoheto -- Kouya Ruten
Ueto Aya - Ume no Chikara (Chikara's Dream)
Linear Mode
