I don't know much about music, but I listen to few Christian songs.
My favourite album at the moment is one from the Sovereign Grace Ministries called Songs for the Cross Centered Life.
With so many "Christian music" that lacks the accurate theology or quality music (sometimes both) flooding the market out there, I was impressed by both the words and music of this album. Not only that, the passion of these song writers seems to be directed at the heart of the gospel living by focusing on the cross and what had happened on that terrible execution device.
You can get it at Koorong as well as directly from the Sovereign Grace Ministries.