It's really hard to find good "fluff-free" Christian music, but it's out there. I find that some of the best Christian songs (including pop) are the ones that are basically just Bible verses put to music, or the ones that take out the main points of a passage and make them more poetic. My two favorite Christian bands that do this are Casting Crowns and BarlowGirl. Their lyrics are very creative and for the most part, free of fluff (and very God-glorifying!). My other favorites include Switchfoot and Relient K. Contrary to Casting Crowns and BarlowGirl, their songs are more "topical" and are more closely related to secular music than other Christian music. However, they're still just as God-glorifying as the other two - they just have a different approach. Actually, Switchfoot and Relient K tend to have almost NO "fluff." Their songs are chock full of meaningful and very well thought-out lyrics.