They are both awesome but as others mentioned, the Special has pin stripes, the red(Flat Black) or silver(Vivid Black) is a personal preference for sure
It looks like there are twice as many so far that prefer vivid over denim. I guess I need to goto a dealer and check them out real good. It seems that the denim pretty much requires a blacked out theme (chrome just wouldn't look right on flat black). Vivid black is pretty neutral and can pull off either themes well (chrome or black).
I will be heading to Rocky Mount tomorrow so I may just swing by RMHD and check out the colors.