I too have a wide array of tune fav's but my first love is Metal.
Pantera, Slipknot, Megadeth, Alice n Chains, Slayer, Testament, old Metallica, Korn, Hatebreed, Killswitch engage but also have the Beatles, Foreigner,The Brian Setzer orchestra, Aerosmith, Van Halen, Motley Crue and various other bands on my Ipod.