I have a Black 3G and my friend has a white. I kind of wish I bought the white but I bet you if I had the white I would wish I had the black. I can never win!
It was a really tough decision for me, but I ended up getting the white one. I figured it would be a bit more interesting and reminds me of the classic apple look.
I have a white iPhone 3G and I wish I got the black one
White is better against fingerprints, smudges and scratches--but it doesn't look BETTER than a black one. White's just not my color if I only could find a black one in stock and just exchange it *sigh*
I'm a male who intended to get black but got white after spending a few minutes with each in the store. While I actually like both colors, the white looks just a bit nicer to me.