I liked Adam's song more than anything.

J, because the AS is more funny/just better

I like J. She's oftentimes funny and has slightly more complexity if you wanna dig into it ("there's no escape, even in DEATH!").

Adam's fun, but bland. Not much to analyze on him.

Adam because I know basically nothing about the other villain.

I hate them both equally. That being, A LOT. They're both terrible people who have no redeeming qualities, really. ...Well, they might care for someone but that's not enough, they need to care for someone in a less selfish way.