Base differences
All new pilots will have Hanoi for a base, more Western in HCM, yes probably so, the weather is a bit dreary in the winter months, but Hanoi has a lot to offer.
Most expats in Hanoi are living near the Sheraton Hotel on West Lake, this is where they catch their transport to the airport, it's a very nice area, but prices are bound to go up with the influx of flight crews.
If you enjoy riding a motorcycle, Hanoi is much better with a variety of highways in the area.
Cheers, D.L.