Had to vote Christian because its not even a real genre. Its just a collection of white washed derivatives bought and made for all the wrong reasons.
nu-metal (Korn, Limp Bizkit, ICP)
hair metal (Poison, Whitesnake, Ratt)
post-grunge (Creed, Hinder, Nickelback)
pop-punk (Green Day, Good Charlotte, etc)
eyeliner emo (Panic! at the Disco, MCR)
gangsta rap (50 Cent, Chingy)
Christian (P.O.D., Jars of Clay, Michael W Smith)
21st century post-punk ripoffs (Editors Want Interpol)
pop country (Faith Hill, Kenny Chesney)
other