My opinion is a bit different then your opinion. There are significant differences between all the branches. It is what one desires.
For instance on my previous Army airbase in Germany there were a few AF personnel stationed there as well. The AF personnel were paid hardship pay to live on an Army base, go figure.
In general AF bases are significantly nicer then the other branches, have shorter deployments, etc. etc.
All that really matters is the people you are stationed with.
My opinion is a bit different than your opinion. While there are significant differences among all the branches, to say one is "better" than the other would be an overstatement.
If you're in doubt, go to the military hospital with dental attachment or a stand-alone dental clinic. They'll be happy to show you around. I'd done my research, visiting many clinics, including both AF and Army. My conclusion: it's not the tools you're working with that make a difference, but it's the people you work with. You could be working for a CO who's all over you in AF, so go figure. I've talked to a bunch of army O-6s, and they were totally down-to-earth, honest, and hard working folks. I found most of the Army clinics I've visited were just as good, if not better as to the quality of the facilities.
As to living quarters, at least on the state side, why would a young officer even want to live on base, anyway (unless you have 5 kids or something)? Also, sure AF bases can appear "better," but unless you're doing a daily tour of the base, you'd be working in your clinic all day, all week.
As to deployment, well, one shouldn't join the military in the first place if s/he is worried about getting deployed for a few months while, as a military officer, getting all the benefits and privileges.