To quote Paul Simon I used to think that everything looked better in Black and White. However, I have now come around and think that there are just some things that are better in color, this being one of them. I think that sometimes the tones of BW take the subject matter out of the picture so to speak, and make the composition linear or maybe textural in nature. (you know i am not sure if textural is a word, maybe i just made that up??) In color the subject is the focus of this shot, and if that was the point of shooting it than you should leave it that way.