What color of granite countertops with white cabinets and gray floor tile?

[JOHN]

We just bought a 1965 vintage house and the kitchen has white cabinets in great shape and we are planning to repaint them Sherwin Williams Bright White. The floor tile is a light to medium gray ceramic tile so here is the question. After almost resulting in a fist fight over the color of the countertops I am here in order to avoid physical injury. What color of granite will work best with this setup. By the way the appliances are a mixture of stainless steel and black.