Mine is glossy white, just got it two days ago, and obviously the first thing I did was that I dropped it on the bathroom floor. It got a small dent on the corner and a hairline crack on the polycarbonate on top of the device. I think the crack is more visible on the white because it gets darker from the dust it collects, but it really isn't visible even then. Other than that, the white is amazing. I ended up with it because with only black/white/gray you can use all the accent colors without "mismatching" with the color of the phone, but with the white also a white background on my screen looks pretty neat. Especially after using a cyan Lumia 800 with a black background for the past 2 years.
The white doesn't show fingerprints as easily as the black one, though it is more slippery because it's glossy.
And out of topic, but the camera is absolutely unbelievable. I was toying with it yesterday night and it's low light quality exceeded my already high expectations.
Below a pic of the phone to show how unnoticeable the crack really is. Can you see it on the top bezel of the device? The photo was taken with my trusty Lumia 800, which feels like a baby phone now. (Although when I got it after my previous tiny feature phone, even the Lumia 800 felt huge.)
View attachment 47940