I listen to a good deal of Protestant music (the type of stuff you'd hear on KLove or Air1, and other stuff). I can find more than a few songs that I really dislike because I think they are irreverent, exceptionally wrong, or just irritate me, and I do not listen to them. However, while the "Jesus is my boyfriend" music that Alveus mentioned does exist, it is not nearly so prevalent as many members on this board like to pretend.
In fact, quite a bit of it is really not all that dissimilar to the liturgical music of the Church (well, the lyrics aren't, the melodies obviously are). As well, there seems to be an increasing number of artists who are crafting songs based on the Psalms (that is, taking a psalm or two, or a passage or two of a Psalm and creating from it a new song, either utilizing said passage(s) of the Psalms for the whole song, the chorus, or using imagery from them in order to craft a completely new song).
Not all Protestant/Evangelical music is bad. Much is good.
P.S. One way you can use to determine if a song might be worth listening to, when you don't have much time, is to see whether or not it is a woman who performs it or a band of women who performs it. For one reason or another, Protestant/Evangelical songs done by women seem to be about 4 times as likely to be ones that I hate.