ot:
Samurai Jack would make it quick, so him. He has better morals as well.
Madara would go on and on about how powerful he is, even though he relies on everyone elses power. Then he would do the same thing he did w/ the gokages and Naruto/Sasuke(he injures people and lets them suffer until they die). That would suck. My ears would bleed even before he attacks me though, from all the nonsense and arrogance that comes out of his mouth.