The Colossal Titan inspires a lot of fear into all of the humans who live inside of the great wall, but Madara isn’t your average mortal. Nothing scares him and Madara can summon his Susanoo, which may be about as large as the titan. The Colossal Titan can regenerate, but Madara’s speed will quickly overwhelm this ability and turn this into a blowout. Madara wins.