My small boat has steel, my large boat has aluminum and my old cruiser had brass. The steel looks pretty and is less prone to damage (it can tear up the lower end instead) and the aluminum is more prone to wear and is waddable if you hit something, obviously the steel is a lot more expensive than the pot metal ones, but what really is the advantage of the steel really if any? Brass seemed to be in the middle somewhere. Can you still get brass props for runabouts anymore?