Aaron Rodgers or Kyle Orton?

Should I start Aaron Rodgers or Kyle Orton this week? I'm leaning towards Orton because Rodgers would be playing in the Superdome on Monday, where the Saints usually play pretty well. They were able to keep Adrian Peterson in check earlier this year on Monday Night Football. Do you think Orton's performance last week was just because he was playing against a top pass defense? Thanks. Kris Russo