Hmmm, Yume no Tsubasa seems to be the best for me.
at the begining of Tsubasa anime series, i wished Sakura Tange to be Sakura's seiyuu,
but it might be ok with Yui Makino. she sings awsome!
btw, did you guys know that she is releasing new CD?
unfortunatly, it's not tsubasa's music, but it was quite good!