Wirelessly posted (BlackBerry9630/4.7.1.40 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)
For seat VX is the best by far. If you can get a 3-cabin UA plane on the route then it is somewhat competitive. If not it is not. AirTran is not competitive at all in that regard.
The bulkhead on VX will let you out from the window if the aisle passenger is reclined without too much trouble.