So tell me, big battle, fate of the world. Someone has Peter, ready to kill him, ready to destroy him utterly. On the other hand you have a shot at finishing it, at winning the war at the cost of him.
Would you take it?
They make the choice. Those that deal, they sell their soul, they give up the beautiful gift He gave them. Crowley did it too. And I pity that. But its his job to ensure they know the error of that choice. Hell was a prison, sure it was twisted, our brother manipulated things, whispered to the world above. But like you said, Crowley's a businessman, Azazel was a fanatic. I know which I'd prefer on the other side.
Its never been so simple as that.
And I'm not the hero. I've never been the hero. But I will make the hard calls and the hard choices. I would have killed Sam Winchester if I'd been here, had the chance to stop Lucifer in his tracks. You know I'd have done it.