I think white would go fine with the gold bits already on the bike. After having the flat grey of the Graffiti for a couple months now, I actually miss having glossy paint. It just makes the bike "pop" more, or something. Hard to pin down. I like the flat charcoal color, but I wish it had a glossy clear coat on top of that charcoal color.
Anyway, that said, white would look awesome, but every time it chips from a rock, it will likely show black, the plastic underneath. Black, as you know, can be a pain to take care of, but it looks great.
If I had to vote, I'd say go black again...ha