How does Dubstep or Soundtracks get its own category and not Metal? Its very different from Rock. It seems you were the wrong person to make such a poll due a lack of knowledge on music.
Anyway My choice is Metal, and all kinds of Metal at that, and it has a huge influence on my life.
And LOL and Metallica being Rock, their new crap that they are making maybe, but their first 4 CDs are Thrash Metal at its finest.