Here's an idea for mine...
Hikaru Utada- ULTRA BLUE
Ayumi Hamasaki- RAINBOW, MY STORY, Duty, I am..., Secret
B'z- MONSTER, LOOSE, MAGIC, C'mon, GREEN
Koshi Inaba- Shian (
by a freaken long shot)
Koda Kumi- Black Cherry
YUI- CAN'T BUY MY LOVE
Meisa Kuroki- MAGAZINE
Miliyah Kato- Rose (
Awesome debut album <3)
GACKT- MARS (
All the singles on this album are AU-MAZ-ING! 
)
BoA- LISTEN TO MY HEART
doa- open_d (
This is such an underrated band! 
)