Spanish Armada, French intervention, or Imperial Germany?

Which was the greater threat: the Spanish Armada, France in the American Revolution, or Germany in World War I?

The Spanish Armada, because it threatened invasion when England had the least strategic depth.

The Spanish Armada ranks first because England had little strategic depth and faced the direct danger of invasion. French naval intervention during the American War of Independence prevented Britain from concentrating against the colonies and left the army to carry much of the war. Losing the Thirteen Colonies was serious but did not place the home islands in the same immediate danger. Imperial Germany faced the Grand Fleet and a British intelligence system increasingly able to use radio information to anticipate German movements.