I'm an arashi fan, and my fave jpop song's love so sweet~
I watched all their dramas since HYD as well~ theyre practically the reason i got into jpop/drama.
KAT-TUN's ok, i liked a couple of Kamenashi dramas, and NEWS used to be my 2nd fave, but I still watch some Yamapi and Ryo dramas.
Hmm the others, i only know of Tackey and Tsubasa (Tackey has good drama skills as well), and those guys whom i watched in G3 (those Hey Say people lol). Oh ya, Yokoyama Yu of Kanjani8, watched him in Yukan Club (with Akanishi) and the Quiz Show (with Sho). V6 i know of jst becoz of that G1 song, but since then they've come and gone