Pre-pre-ordered black. My wife has a gray 15 Pro and it looks so ... boring, IMO. Never been a fan of gold, and the white one is cool but I hate the way the camera lenses stick out so much, being black on a white background. So I'm upgrading from a purple iPhone 14 Pro Max to a black 16 Pro Max.
Edit: Changed my pre-pre-order from black to white. Then changed my mind again, and went with natural titanium (convincing myself it looks more silver than gray). Doesn't really matter to me as I only see the front of the device 99% of the time.