I really like Acid Black Cherry right now Japanese wise [though Dir en Grey will always be my favorite].
Cinema Bizarre is okay, for a German band.
YouTube - Cinema Bizarre: LOVESONGS (THEY KILL ME) (Official)
Chinese wise I like Jay Chou, he does everything from R&B to Rock and pretty much everything in between.
YouTube - 周杰倫 Jay Chou - 龍拳 Long Quan (Dragon Fist