I think the writer makes very good points regarding the Saints offense. But I think you make very good points too -- while they are quite similar at the skill positions, you have to give a very big nod to the Cowboys offensive line versus the Saints, and a big nod to the Cowboys defense, although the Saints are vastly improved on that side of the ball from a year ago.
But yes, these are my two teams in the NFC championship game, Saints at Cowboys. Cowboys win. In the other, less important conference, I have San Diego vs. Jacksonville, with San Diego getting the nod. Unfortunately, there are too many juicy story lines in a Cowboy-Chargers Super Bowl, so it will probably wind up being Jacksonville.