Omnivore fo so. The band I have the most of on my iPod by far is Queens of the Stone Age (omnivore), followed by Linkin Park (omnivore), then Radiohead (herbivore) then Filter (carnivore I guess?). Most of my music basically follows that -- some heavy stuff, some light stuff, a lot of stuff in the middle.
Omnivore/leaning towards carnivore (not really a fan of pop and radio-music, however my taste normally goes from mainly Punk/Metal-/Death-/Core/Hardcore, even some extremely brutal Metal stuff, to some electronic music and lots of Hip Hop)