Health insurance isn't great. It's not bad but not good. If you are military keep TRICARE reserve if you can.
For an example your dental insurance doesn't include bi-annual or annual teeth cleanings. It's going to cost you $60. Use to be all preventive teeth cleanings were included.
Health insurance premium wise is better at United but I wouldn't let that stop you from coming to AA. Most insurance policies across all the airlines are deteriorating to just mediocre.
On the good side the 16% 401k contribution is really good! You don't have to put up one penny if you choose to and still get 16%.