I agree with Rhys. Music without lyrics is all well and good, but adding lyrics, and not just any lyrics, can really enhance the song. Some songs can give you goosebumps just by how well thought out the lyrics are.
However, nothing beats a nice long guitar solo on a rock song.
a perfect example Nickleback - Just to get high, very good music setting the pace, great vocals to set the mood, powerful lyrics to convey the story and then a face melting solo to blow you away, that is a well thought out song in my opinion
If you cant run then you walk
If you cant walk then you crawl
and if you cant do that no more...
well you find someone to carry you