1. Kumi
I really love Kumi's voice when she speaks. She sounds so happy and naive
It's fun to listen to her speak a lot too XD
2. Utada
I don't know. I find her voice very soothing for some reason, like she's always doped out of her head or something XD
3. Ayumi
Ayu sounds really fake when she talks. I hate how she puts on that super high pitched voice from time to time but when she speaks in a lower voice it's good to listen to
4. Naime
Sounds strange... 0_0