The advantage of taking RAW is you can correct brightness, sharpen, white balance etc in the pc without any degraded. Doing those things with jpeg files will usually degrade the pictures. I always use RAW and love to adjust them with Nikon Capture 4. In camera correcting are for average photographs which likely mean human faces. I shoot birds and bees and reptiles and do not want camera engine to smooth out their faces.
http://www.birdforum.net/pp_gallery/...cat/500/page/1