Vocals are the most important part of a recording. Over the years, I've heard some bad recordings that are wildly popular. It boils down to the vocals. If the lyrics and the emotion is just right, than the song will be a success. Now you should spend some time working on the music. I'm not saying that all you have to do is produce vocals, but do give the vocals the most attention.
Start by recording a very rough scratch track and than take a few moments to listen to the context of the vocals with the music. Does the feel of the track have the flare that you're seeking? Do the vocals sound like they carry the listener through the song? In some cases, it may be good to re-write some of the lyrics to convey more emotion or to mold into the music a bit more. This is a golden opportunity to figure out how the delay and reverb will be used to treat the vocals. Sometimes, the style of delay may lead you to a different style of singing or even slimming down some of the lyrics.
Now of course this technique is dependent upon the context of the song, yet I've used this approach on many tracks with great success. Next post I'll discuss more about mic placement and tracking scenarios.