You can't make a decision for the future based on the facts of today. Things change daily with the regionals. Just keep watching the climate and pick the regional that gives you the best QOL because the chances are you are going to be working there for quite a few years.
Don't pick a regional based solely on a base. Bases open, Bases Close, and the company can displace you out of necessity for a number of reasons. With fast movement you lose the ability to easily predict where you will be month to month. I am not saying it is necessarily a bad thing, but if stability in a base is what you need for QOL, then rapid progression may not work to your advantage.
The short answer is, come back at about 1400 hours and then start asking these questions. It is almost certain that 6 months from now things at every regional can be vastly different.