Well it is hard to rhyme when you use real words and try and put forth a coherent story. Christian groups would do alot better if they just started making words up and rapping about nothing.
Christian groups would do a lot better if they honed their craft, concentrated on musical and lyrical integrity, dropped the smarm level by at least one order of magnitude...
If they can't do that and still sing reverently about their God, then maybe they should admit that pop music is not a good format for such an endeavor and try to follow in the steps of the baroque and classical masters.