Well, considering it's been three years since I last posted.
My favorite band, depending on the day, is either Red or Demon Hunter. The former (newer albums especially) is about the right degree of intensity for me, heavy guitars and drums with melodic vocals and well-placed harsh vocals. The latter I pull on more as a guitarist, they have some very cool riffs and the melodic vocals, while usually limited to the chorus of each song, are also really good.
Honorable mentions include Celldweller and Blue Stahli (neither if which qualify as a band per se), Radiohead, Disciple, Royal Blood, and (a very new addition) Invocation Array.