I have to say that the YG black dial is not really to my taste, but that's a personal thing. Don't think I've ever owned a YG piece with a black dial, now that I think of it.
I also considered the RG with silver dial. The great thing about that watch is the contrast between the colors of the case and movement. At the end of the day, though, the absence of the Romans bothered me too much.
Finally, there's the "iconic" bit -- I own a RG Dato, and thought that for the DS I would go with the more "classic" PT/Black version.
Thanks for asking!
Best,
Gary