The broadest appeal is probably silver, but I like the way the middle ones look, similiar to my wheel color. Gold looks great on some colors, but looks a bit off with silver. Plus, I'd avoid gold if you are looking for broad appeal for resale.

I wouldn't worry about the resale though...I'd just get the ones you like. You'll likely get more money out of your investment if you sell the wheels separately anyway when you sell the car.