Recordings!
Inoue Hikaru - She picked a song that really fits her voice and does very well :3
Okamoto Honoka - Aww well

So off

Bless this little child. She was born after I became a H!P fan, in 2004. LOL
Kasahara Momona - off as well

oh well

Haru Beautiful Everyday is a smart song choice for a newbie though, it's not very difficult and allows for your voice to be heard clearly. Also I love this song haha.
Danbara Ruru - awesome, as expected!
Horie Kizuki - Holy carp she has the balls and voice to pull off Shabondama!
Onoda Saori - not as good as Ruru, but still pretty good, some loss of control and yell-singing, but she def has potential (omg the P word)
Yanagawa Nanami - omg she's adorable as fuck and can sing okay? T__T !!! I thought doing this song would be impossible solo to begin with because it has lines in such rapid progression/overlap and there she goes and does it effortlessly... She has to be the new miracle child of H!P, haha
Tsumano Momoko - off

but cute voice
Hashimoto Nagisa - a little shaky, but pretty good overall :3 Since she got props for dancing I'd really like to see this as a whole, the movement might explain the shakiness too.
Yokogawa Yumei - shout-singing in the intro and very off after that, uh oh!
WINNER Kaga Kaede - Hmmm I don't think her vocals here are actually that good haha, but it's still her strength that her voice is so different from others and she has power...
Nakano Rion - off, but very cute voice
Nakase Kurumi - I think she has a pleasant tone of voice and does pretty well :3
Takemura Miu - Kinda off, but her voice sounds nice enough
Ichioka Rena - ooooohh has she improved?? She sounds good! Way to go Icchan :3
Akiyama Mao - Oh I like her voice, even if she's a wee bit off, nice and clear
Kanatsu Mizuki - KIMISAE SOLO? Gurl is nuts. So difficult, and she does go off a lot, and runs out of steam. I think she's just young and picked a song she liked without thinking strategically.
Ono Mizuho - Quite okay :3 There's something likeable about her to me anyway so I'm glad her singing is ok!
Funaki Musubu - Aw her voice is so cute but has strength too, and great job picking an age appropriate song that just really fits her voice well, too.
Maeda Kokoro - off

though not the worst one of the bunch
Overall, not that many vocal trainwrecks tho there are a few; I think nobody has an unpleasant tone of voice, however, so with more control and practice those that are now okay could be good or great later on. And then there are several, I'm actually surprised how many pretty good ones, though Ruru to me is still obviously the strongest. But that's no surprise. Rurus don't come around often in H!P.
I thought that since almost all my favs have debuted now I could take a break in caring about H!P Trainees, but I guess it just wasn't meant to be. Sigh.