Here are some of my favorites.
Papermoon. By Tommy Heavenly6; 2nd opening for Soul Eater.
"I've always loved this song; the lyrics are awesome and are kinda pretty in a way."
Style. By Kana Nishino; 2nd ending for Soul Eater.
"This song is just too cute! ^o^"
Tori no Uta. By Lia; opening for AIR.
"Even time I hear this one it kinda making me teary, as this anime was the only one that really put me in tears. But it is such a pretty song."
Let Me Be With You. By ROUND TABLE featuring Nino; opening for Chobits.
"One word. Kawaii! ^-^"
Kaidoku Funou. By Jinn; 2nd opening for Code Geass.
"I adore this song! Code Geass has always been a huge love of mine and when I heard the song it made it bigger. It very up beat and makes you exctied."