Pinetar always had a good explaination of what music should be on a music peice.
I've played rap but not the gansta crap. More of the Ciara, Fergie and Akon type. More danceable of the hip hop genre.
Personally though my himi crew played mostly rock and pop. XM 30, 22, 81BPM were commonly played when cd's weren't being played in the daytimes.