Anyone remember Halna?? From HAL :P

Misia, Miwa Yoshida, Hikawa Kiyoshi, Gackt, Shiina Ringo, isshi from kagrra,, toshi from X japan, among others :)

I guess I'd go with Keiko, Kaori, and Hikki. The 3 are somewhat different from each other: Hikki's voice is somewhat low, Keiko's is pretty high, and I think Kaori is somewhere in the middle, but I enjoy hearing their different styles of songs ;)

i wanna agree that MISIA's the best voice around.!

Females: Tomiko Van of Do As Infinity, Chihiro Onitsuka, ayaka, Nana Tanimura, Eri Nobuchika, Rie fu, OLIVIA
Males: Miyavi (after he stopped smoking), Takanori Nishikawa, Atsushi Sakurai, Hizumi of DespairsRays, Noda Yojiro of RADWIMPS

Females : ayaka , Anna Tsuchiya , OLIVIA , Mika Nakashima , alan , Koda Kumi , ayumi hamasaki , Namie Amuro , YUI

Males : Ken Hirai , Takanori Nishikawa , L'Arc en Ciel's HYDE , GReeeeN's HIDE , Kobukuro , BREAKERZ's DAIGO

MISIA, hands down.

Hitomi Shimatani

ayaka's voice is absolutely stunning.... especially at her First Message tour

I love KOKIA's voice
and Chihiro Onitsuka's (though I don't listen to her as much anymore)

KOTOKO's voice is always really really good live, so I'm gonna say her as well

and Arika Takarano from ALI PROJECT has a really strong live voice.

MISIA really has a GREAT voice, everyone should go to her concert, and experience one of the best voice from japan. beside that, namie amuro, kuu and ayu, they have powerful voice, but beside them it cant be deny that tomiko van, chihiro onitsuka, YUI, anna tsuchiya and ayaka have a REALLY powerful voice too. and not to mention ken hirai too :P

EDIT: no one mentioned STEPHANIE???

Ayumi Hamasaki :yes

basket I forgot Yuna Ito :dead2

Shimatani Hitomi & Nakashima Mika

period.

Utada Hikaru! (and Keiko Yamada)

I would have to say Misia, Yuna Ito, Ishii Tatsuya (Kome Kome Club) and Origa

Male: Shota Shimizu
Female: Miho Fukuhara or Misia

Male: Shota Shimizu
Female: Miho Fukuhara or Misia (but if your talking tone wise I'd have to say Miliyah Kato, Munehiro, SONOMI, or Emi Hinouchi)

emi hinouchi has the best voice!!!