You can like whatever fucking music you want to like. There is no right or wrong.
Personally, I think heavy metal, death metal, butt rock, is goddamn horrible. Pussy voice satanist roleplayers. I don't give a fuck if their lead guitarist can do a hella quick and EXCITING solo while spinning his smelly and greesy ass hair around until it rests between his ass cheeks.... Big deal... Personally I think vocals are what appeal to me most, and SLAYER's, ZAKK WYLDE's, and OZZY's high pitched bitch screaming voices sound gay as hell. They try to sound "tough" or "evil" but they just sound like fucking idiots.
If you think the only talented musicians are in the heavy metal genre, you're smoking crack. Beethoven was a good musician and composer, but HE CANT DO A GUITAR SOLO LIKE ZAKK WYLDE!!!! There's no right or wrong answer when it comes to music...