Well, here is the post that will likely get me ran out of this forum. lol.
I'm a Christian. I accepted Jesus Christ as my Savior and Lord when I was 12 but made no real commitment until I was 23. What actually drew me in was Christian metal. Bands like The Showdown, Becoming The Archetype, Demon Hunter, etc. Christian metal played a huge role not only in my re-dedication but also in my growth.
Bands that are not Christian have, at times, even played a role in that as well. Some songs, whether the band's intention or not, actually do run parallel to Christian outlook and many bands do have a positive message.