Just get the color you like.
Getting my very first iphone: white 16gb.
Now that the white iphone 3GS isn't the pricier option, how many people do you think will be sporting the white ones now that it's not an extra $100?
+1
I never got why people would ask these questions. It reminds me of people looking at car shopping, "Should I get the red, blue, or black one?" Do these people know color makes no difference on the inside? Its all personal preference. This question and "what size should I get 16gb or 32?" How the heck should I know! Get what fits your needs! Is it really that hard?
On an unrelated note I want to know what color I should paint my room? Any suggestions?