Iphone 5 Black Vs White, Which One To Buy?

I need help deciding & why you chose the color

I'd pick white.

Black, because black runs faster than white (bolt)
but for style it depends on your iphone case/ white is easy to spot at night black atracts sunlight so its your choice

White easily can see dirty. But both will be ok as you can buy new case & keep on changing it.

White, it looks more modern and it suits everything

Black- it doesn't get dirty easily, runs faster.

@Diablo: neither colour runs faster than the other.

There's no difference between the 2 except for the colour. It is simply personal preference.