This is a never-ending argument that I strongly suspect will never be solved. Aficionados of JPEG will continue to shoot in JPEG no matter what evidence is produced that RAW can be better for many uses. I say many because the author of the blog I will refer to recognizes that many family snapshots do not need or require the quality we get from RAW. However personally, I tend to shoot EVERYTHING in RAW because I like a consistent workflow. It is easier for me to process my images with one workflow than to shift back and forth. I guess that is a result of being 75 years old...
John Watts is the owner of Watts Digital Imaging in San Diego which is a custom printing firm. He has been doing custom printing since the analog days of film and is a member of the photo contest judging panel for both the San Diego County and the Orange County, California Fairs. John gives monthly presentations in Photoshop in San Diego. I have attended many of his presentations; for which John charges only enough to pay for the rent of the space he uses in Balboa Park Photo Center. I am quite impressed with his skills and have learned quite a bit from his instruction. John is also a nice and helpful guy and will go out of his way to help any of us or to answer our questions via email...
Anyway, so much for John's resume, here is a link to his blog, specifically on his comments regarding RAW vs. JPEG...
http://blog.main.wattsdigital.com/?p=1789
There is also a lot more information available from John on his Internet sites...