What impresses me about him is that he doesn't let his personal preferences blind him to other interpretations or rule them out.

I'm listening to his C2C interview right now, and one question was about Bible prophecy. He made the points that prophecy is deliberately cryptic, and that one's interpretation always depends upon certain foundational assumptions. So while he has his personal views, he allows that other views about prophecy are possible and shouldn't be summarily dismissed.