I suppose I would choose rap, even though I don't listen to it. R&B and Hip Hop should be in a different category, as I listen to more of that, and close to no rap. They are very different.
Rock (Inc Metal, NU Metal, Punk) Of course... Nine Inch Nails, Manson, Slayer, KMFDM, TOOL, Nirvana, Pearl Jam, STP....and the list goes on.