5. who else?! AYU of course! (>_<)
4. namie amuro
3. mika nakashima
2. beni arashiro
1. koda kumi

5 Kaori Mochida (Every Little Thing)
4 Van Tomiko (Do As Infinity)
3 ai otsuka
2 Suzuki Ami
1 BoA

5. Shiina Ringo
4. Ayumi Hamasaki
3. Mika Nakashima
2. Hitomi Shimatani
1. Kana

5 Rika Ishikawa
4 Natsumi Abe
3 Aya Matsuura
2 Maki Goto
1 Miki Fujimoto

5. Koda Kumi
4. Beni Arashiro
3. Namie Amuro
2. Ayumi Hamasaki
1. Mika Nakashima

05 - hitomi
04 - ayumi
03 - namie
02 - kumi
01 - mika

5 - Amuro Namie
4 - Hitomi Shimatani
3 - Kumi Koda
2 - Ayu
1 - Rina Aiuchi

5- Koda Kumi
4- Namie Amuro
3- Ayumi Hamasaki
2- Mika Nakashima
1- hitomi

:D

5. Hamasaki Ayumi
4. Nakashima Mika
3. BoA
2. Amuro Namie
1. Otsuka Ai (don't like her music, but she's HOT!!!)

5 - Ayumi Hamasaki
4 - Tomiko Van
3 - Namie Amuro
2 - Koda Kumi
1 - Hitomi Shimatani

hmmmm. this one's hard.

5. Ayumi Hamasaki
4. Mika Nakashima
3. Koda Kumi
2. hitomi
1. Suzuki Ami

5 ayu
4 namie amuro
3 mika nakashima
2 hitomi
1 ami suzuki

05. Michi Saito
04. Aiko Kayo
03. Nao Nagasawa
02. Kumi Koda
01. Ami Suzuki

5 - Amuro Namie
4 - Hamasaki Ayumi
3 - Otsuka Ai
2 - Koda Kumi
1 - Kana(sorry, she's just so darn cute)

5; Koda Kumi
4; Utada Hikaru
3; YURI (m.o.v.e)
2; Hamasaki Ayumi
1; Nakashima Mika

I'm doing this based on their music mostly not actual hotness but heres my list.

6. if there was a 6. it would be Ai Otsuka for her cuteness
5. Mika Nakashima
4. Aya Ueto , except for her I voted for her hotness mainly
3. Ayumi Hamasaki
2. Bonnie Pink , she is way too underrated, d/l her stuff!
1. Namie Amuro

5 Hitomi Shimatani
4 Mika Nakashima
3 Maki Goto
2 Ayumi Hamasaki
1 Koda Kumi

5- Ayumi Hamasaki!!!
4- Koda Kumi!!!
3- Gotou Maki!!!
2- BoA!!!
1- Ohtsuka Ai!!!