USAir has been pushing Flaps 3 for years on the Airbus. They say it lowers the risk of tail strikes. You can land at 3 or Full, but if you whack the tail and you landed Flaps Full, I can guarantee you'll making a trip to the big brown desk.

Having said that, the 321 lands better with Flaps 3.

Post merger, the company said our preferred Flap Setting for the 757/767 is 25. Boeing says the risk of a tail strike is higher at 25.