These artists aren't in any particular order, I don't rank them by favouritism since it's just too difficult
1. Ayumi Hamasaki - SURREAL / Memorial address
2. globe - Anytime smokin' cigarette
3. Dir en grey - 24個シリンダー / Mask
4. GO!GO!7188 - C7
5. Glay - Biri Biri Kurasshyumen
6. Hitomi Yaida - Kodoku na Cowboy / Creamed potatoes
7. Namie Amuro - A Walk in the Park / I Have Never Seen
8. X Japan - Endless Rain / Desperate Angel
9. Zwei - Dragon / 24/7
10. Shiina Ringo (<3) - Yatsutsuke Shigoto
11. M.O.V.E - Noizy Tribe / 7 Days of Love
12. Kyosuke Himuro - NO MORE FICTION
13. miyavi - ♂パパママ♀～望まれヌBaby～ / 常勝街道
14. TM NETWORK - 1974
15. Nightmare - the WORLD / the LAST SHOW
16. L'Arc~en~Ciel - Be Destined / Singin' in the Rain
17. Judy and Mary - Power of Love
18. Ai Otsuka - U-Booto / Futatsuboshi Kinenbi
19. Yum!Yum!Orange - Yellow Halloween Night
20. W - Senti-metal boy
I'll stop there. I just thought of the first songs that came to my head when I thought of each artist
Writing lists of songs for all my favourite asian artists takes up so much time O_O. I may add to the last at a later time lol