See that's the thing with Christian rap, you really have to be paying attention to what's said. Like Lecrae and the first guy, the starting over song, those are awesome standouts. But often I start listening and start hearing stuff like talking about making money, being in the fancy cars, ect. It's easy for R&B to get tainted with the worldly culture, but then that's true about any music form.
To be quite honest I don't listen to Christian rap because a) I don't always find it easy to worship to since I'm used to older stuff and b) I'm such an old fogie I often can't tell what the heck they're saying if it's rap alone XD