Most conservatives understand that you cannot earn your way into heaven, so really comparing their sins doesn't mean anything. Of course God is the only one who truly knows what is in the souls of George W. Bush and Ted Kennedy, but from what they present to the public, it looks like Bush truly did his best to follow God, and therefore, I would imagine that he has repented of his sins. I hope that Ted Kennedy did so as well, as I don't wish that anybody goes to Hell, but based on his public persona, it does not seem as likely.