I don't see why so many people said "I rooted for Deok-su" unless they wanted him to die a more satisfying and brutal death by Mi-nyeo. The guy had zero redeeming qualities unlike 278, who was only following his orders.
Jang, because in this instance Player 278 was the one who started mocking him first while he was still winning and didn't care that Jang was going to die.
But they are both Hate Sinks, so I suppose the right answer here is nobody.