Not to start a flamewar here, but I really think the problem isn't DL.com or NWA.com being better or worse than the other, but what you are used to. I've been a DL medallion for six years, and I rather like DL.com. Booked a flight on NWA.com last week (lower fare) and I thought the UI was terribly unintuitive and had some problems with it using my old NWA number even though I punched in my SkyMiles number. C'est la vie, and an integration of this size is the last thing I would ever volunteer for, but I think the NWA>DL site myth is just that.