Oooh, favorite bands, lemme see . . . . I'll have to go with Dir en grey, Panic Channel [the visual kei band], Janne Da Arc, Miyavi, Keane, Flogging Molly, Orange Range, The Human League, The Clash, The Who, Kaggra, Tackey and Tsubasa, The Brilliant Green, HALCALI, Yum! Yum! Orange, Gatsby's American Dream, My Chemical Romance, All-American Rejects, Fall Out Boy, Common, and L'arc~en~ciel.
Gosh, that is a lot, isn't it? ;D It is very hard for me to pick one as my favorite, so I pick a whole lot of favorites. And I love them aaall.