Probably sticking to black. Then again if the iP6 white comes out and looks totally irresistible I might go for that. I always though white phone + grey/tan leather cases looked very nice (I always use a case).
If I end up going for the Note 4 I'd definitely go black, I'm not that sold on that model in white.
BTW I thought the bronze/copper + white Ativ S tablets looked really nice, I wouldn't mind a phone with that colour scheme. The copper kind of has a nice a steampunk look to it
I keep wanting and wanting to try white but every year I end up with black.
This year if all the leaks are accurate with the antenna bands I do think the space grey looks best, so I guess white waits two more years till the 7 redesign.