Juanes has some of the most masterfully catchy canciones de desamor anywhere in the world outside of Adele. This is one of my favorite tunes which shows some of his range, a song about how he asks God to always be close to his love, that his mother won't die, that his people would stop shedding so much blood, etc. :)
Puerto Rican Funky has been the most popular Spanish-language Christian rapper for quite some time, I just came across this massive track along the lines of "I am the way I am and I know who I am." It's Dominican rapper Redimi2 who really steals the spotlight on this one though. There's some real talent here.