Actually, the winner keeps changing all the time. As of September 28, 2005 it is "White Shadows" at 46%, while "Talk" is at 44% and "Swallowed in the Sea" is at 10%.
I voted "White Shadows" because "Talk" just doesn't strike me as third single material and "Swallowed in the Sea" wouldn't stick in the heads of listeners all day long, like "Yellow" and "Clocks" did. "White Shadows" has a fantastic tune and beat and the chorus is wonderful. It could do really well if given the chance.