Hah, broke the tie
I never liked Kuu because of her voice, so it's a no for her.
Namie has two ballads I like:
Baby Don't Cry and
Tempest, rest ar crappycrap
Ayu-chan, well... I never liked the song that much, but after seeing her perform it in PoM, I started liking it a little more. However, I still skip it on my playlist xD
So
beloved is least terrible of the three evils