My favorite idols would have to be (personality and singing):
1. Chihaya
2. Azusa
3. Takane
4. Hibiki
5. Makoto
I'm partial to Miki. She sounds good on a seldom few songs, but horrible on most others. Her voice is too cutesy and it even ruins the songs that are supposed to sound cute! In my opinion, Miki's voice is balanced nicely with Azusa. Miki's a bit snobbish, but is nothing like Iori who is the ultimate diva (I'm not saying that in a good way).
Yukiho'a voice is iffy. You really have to find the right song for her. The whole ridiculous phobia of men makes me question why someone like her decided to become an idol. She'll probably have male fans, but she'll spaz out and run away from them.
The idols that I don't like (personality and singing) are:
1. Haruka - too much optimism is unrealistic and annoying. Her voice is also kiddish.
2. The Twins - I just don't like them. I tried to like them, but I can't.
3. Yayoi - she's the youngest and her personality is very sweet. Nothing bad to say about her personality. Her singing voice.....it's just bad to me.
4. Iori - true she has her nice moments, but they're just that, moments. She doesn't sound too bad on Here We Go!!, but I just don't like her voice that much.