Most hit songs are written in such a way that they contain musical patterns that repeat consistently throughout the song. These are called hooks because that's exactly what they are meant to do. They hook you. All five of the above songs have a definite musical hook. Just try singing the first few lines of each song and you'll instantly be aware of how important that hook is to the shaping of each song.
Lyrical hooks are just as important as musical hooks but the ideal is to stack the two together.
Notice how the musical pattern or hook repeats right along with the lyrical hook. It is very easy to make the mistake of using too many words in a song. Usually songs with too many words lack a good lyrical hook. Worship leaders really appreciate songs that easily flow from one section to another. When I lead worship I like the freedom to be able to repeat the verse before going into the chorus if I choose, or smoothly repeat the chorus.