The NFC is totally wide open.
The Bears are the best team, but when they have performances like they did against the Dolphins and Cardinals it makes you wonder. Plus, you don't really know which Rex Grossman you're going to get.
At this point there's quite a few teams that could make a run, but the main contenders from the NFC, IMO, are Chicago, New York, Seattle, Dallas, Carolina & New Orleans.
I'm not really sold on the Saints, despite their record, but with an offense like that you're always a threat to win.