It would be Darth Maul because it took Obi-Wan and his master to kill him, plus if that lightsaber would've fallen with it's master, he would have no chance of winning. And Maul was caught off guard, so if there is no Obi-Wan there is no Darth Vader. Maul the assassin would win because he could kill Anakin if he wanted to, and yes probably if there was a battle between them I would say Darth Vader, but Maul is the next runner up!! You can't make the excuse that Maul was caught off guard, he's supposed to see things like that coming through a little thing called the Force, and Obi-Wan killed Maul by himself when he was still a Padawan. Vader would win this fight hands down. I hate when people make Maul out to be better than he is...he's utterly useless. Yeah, but he was still caught off gua