@Wicked Deeds - This is indeed an interesting thread, and of course very subjective. Recently I have been listening to early demos and mixes from both XTC and David Bowie, and the role of the producer becomes very clear. Take "Lets Dance" a memorable song for many reasons, Stevie Ray Vaughan on guitar, Carmine Rojas on Bass, Omar Hakin on ENORMOUS drums...but it didn't sound like that to start with...
The strange thing is that Nile Rogers and Bowie were both the songwriters and producers, but it seems that Bob Clearmountain was pivotal in getting the final sound, but one wonders how many iterations were required to get closer to the final cut.
What I might be trying to say is that it takes us ages to produce a song, for others more capable that us, they are much more agile in reaching the sound they want sooner, and it might take more iterations to get there.
Yes the quick bit is sketching out the chords, melody and lyrics for the bones of the song, but so often there is more, only revealed by the process of production.
To me the writing and production of a song are so inextricably entwined that there ain't a fag paper between them, it's a rare song that isn't modified in the production stage, and the most important bit is to wait until it's properly finished, as I've said before it's rather like giving birth, it's not to easy to put it back once released.
@PaulAds - it's interesting to read that you don't agonise too much over your songs, and you don't get attached to them...but production wise You know what sound you want, you then apply it. You kind of imply that you know you should do more on the vocals, but you ignore the feeling, and then you don't get attached to it.
Vocals are often a point of agony, and are usually the star of the song, so they deserve special care and attention, like filling in your passport application correctly.
The songs I can't get attached to don't get finished, they are thrown in the B&Q song incinerator very early, drenched with songkiller and yip there are loads of them.
Hope this helps...