Not pearl white. Anything but that.
Of the two, I'd go with the black, in spite of the increased maintenance demands.
But it's funny to see someone ask "which color?" and then post a black car and a white car. Cars with no color at all. How about a nice obnoxious bright blue metallic? Or red? I'm so sick of the white-silver-pewter-charcoal-anthracite-black spectrum, which seem to be all you see on the new car lots anymore. But that's not as bad as sand, or pale metallic gold. Ugh. Do they have a nice rich burgandy for that car?