Best Anime Theme Songs

what are your favorite anime theme songs? im trying to get anime songs to download and i want sum suggestions>//<

hmmm i have some:

Hishoku no sora and Joint (both from shakugan no shana)
Ebulient Future (ef melo)
Euphoric Field (ef a tale of memories)
Colorless Wind (sola)
Binkan no Fuukei (sola)
Reflectia (ture tears)
Sakura amaneku sekai (da capo II S.S)
YOU (shuffle!)
Soshite Boku wa (Prism ark)

there are some more but i prefer a female vocalist ^^