Delta has had doors on the A350-900/A330-900 neos for years now and I didn't see a rush of UA flyers coming over for the "Delta One" experience. UA is not going to have these new seats for years so DL is going to have the advantage for a long time. All of you door lovers better change your loyalties right now.

The truth is that most flyers are slaves to their highest status loyalty program. Price shoppers, like myself, have been flying DL1 whenever their price is cheaper than UA or AA without regard to DL1's fabulous privacy doors.