I bought the Vapor since it is metallic & shines better. Its easier to keep clean and has the black stripes so I get somewhat of a black look (I like black but not the upkeep). Vapor is discontinued for 2010+ which makes it more rare to see on the streets IMO.
White on the other hand is even easier to care for and is not discontinued so finding matching parts or whatnot is alot easier.
Ultimately its up to you as your paying for it and have to live with your decision.