Out of those choices, of course black. Gray reminds me of Mac, and I rather stab myself...Though on second thought, a white laptop done right would look very snazzy. I've seen a white Dell laptop and it was the only time I truly wanted to buy one for myself.
i like gray color, my uncle have white vaio and i dont like, catching dust easily and after some it looks going down.
I love custom made color which dell offers for Studio laptops. Its really great having exceptional pattern/texture on laptop.
I would get the white one for sure. The color just looks better are scratches aren't as visible on it.
Black. since it dont get durty easily. I have this problem alredy with my HP laptop when I'm in field.