I went for black only because blue was on a delayed release.
While I would have preferred matte, I'm not keen on the white as I always think it attracts dirt and scuffs because gloss is easier to wipe even though it attracts fingerprints.
White I think tries to be ipod-esque and black is too much of a standard, blue is different and a head in the direction of Dell-like colour facias.
I would still opt for blue if I bought one again.