A very hard ? to answer.
I listen to a wide variety of music; from eclectic to metal, reggae to 80's pop. I really like to be diverse with my tastes in music because there is so much out there and so many different sounds and styles.

To try and snswer your ? though; my top bands are Gojira, Led Zeppelin, Clutch, Apocalyptica, Arch Enemy, Otep, Keller Williams, Bob Marley, Nirvana, Animal Collective, Daft Punk, Crystal Method, Enter the Haggis, Faith No More, Gogol Bordello, Kaki King, Tool, A Perfect Circle, and MANY MANY MANY more...like seriously i love music.