Metal fans are a very passionate bunch. They're also very opinionated, so when we asked them to vote for their favorite metal albums we expected a huge response. We also expected a big debate about the very definition of "heavy metal." Some metal fans say that groups like Led Zeppelin and Guns N' Roses are metal. Others think that's completely insane. We aren't here to settle these debates. We're merely here to count the votes. Click through to see the results.