Using fatal accident data, there have been 5 fatal accidents in the 757. (2 of those were part of 9/11, 2 were likely pilot error, and only 1 was due to mechanical failure.) There have been 8 fatal accidents with the A320, all of which haven't been fully decided whether they were pilot or mechanical error.
The 757 is considerably larger.
They have a few Airbus A320 NEO's on order, but no signs of a 747. They are getting 777-300ER's though
The A 320 has a baggage capacity of 1,340 cubic feet. That's about the same as a Boeing 737-400.
It stands for 'Airbus'.
As of October 2014, they are flying Airbus 319, 320, 321, 330, 340 and also Boeing 737s
Airbus-320-200, Airbus-320neo
Even though the 320 looks wider the 757 is bigger as it is more long. The 320 may look wider but actually they are roughly the same width and in most cases in a standard seat set up will both have 3 on each side of the isle.
the lease price of an airbus 320 is 250.000 euros
Vietnam Airlines uses Boeing 777, 787. It also uses Airbus 330 and 320/321. They also use some Fokker 70 planes. Their fleet consist also of ATR 72 and some Airbus 350-900
An Airbus A320 costs between $73.2 and $80.6m (US Dollars)
The A 320-200 has a take-off weight of 170,000 lb.
All Airbus versions are built by Airbus Corporation. This is in Europe and parts are made in different places and assembled at Toulouse, France. A plant to build A 319, 320 and 321 is being built in Mobile , Alabama.