Just have to chime in and agree with all that's being said. I've only been with NW for about 5 years. Become a loyal red-tailer was actually by accident ... the travel agency at a new job booked my transpac with NW and I never looked back.
I've matched to CO and only have one DL flight left in November. I'm sad to see it go, as I have truly found this to be a great airline, and loved the folks in this forum who made it even better!