Mokey25
Dan is absolutely correct.
If you are thinking of doing a lot of commuting then the Airbus fleet probably has the edge over the 400. At the moment the 400 folk are flying 5 or 6 trips/month whereas the Airbus 1, perhaps 2, a month less. That said the 400 rosters appear to be slightly more stable than the Airbus (often having to wait longer to get their roster due to last minute changes to schedules).