I love FUJIGAYA TAISUKE and MORITA MYUTO the most.
I like other juniors like Shin and snow prince choir, EXCEPT yoshino shouta, BiS (they're all cute- Nakaken's Smile, Kikuchi's face and voice, Hokuto's innocence and Yuugo's noobness), ABC-Z (because they're hilarious) and a couple of not-given-much-show-time juniors like Watanabe Haruki, Kanda Noriyuki, and Sasahara Eisaku.
For debuted groups, HSJ is definitely number 1. I like all 10 of them:) But Morimoto Ryutaro most. I'm okay with NewS, Kat-tun and arashi.
With new juniors up and coming, like Kuramoto Kaoru (like chibi Yuto but A LOT GRUMPIER), Marius Yo (like chibi Chinen), Sato Shori and Matsushima So (who reminds me ALOT of matsumoto kohei, with his talking), even some of the old SnowPri like Inoue Mizuki, Hashimoto Ryo, Hanaba Yuki, or HHJ's Murata Rikito (great smile, that kid), Kadoi Kento.