Looking at the four majors and several other programs around the world, everyone seems to be using a variation of the precious metals, Silver, Gold, Platinum, Diamond, etc.
How about as a part of AA's makeover during BK, they rename the elite levels to have a connection with the Navy that CR Smith was so obsessed about?
Non Elite can become "AAdvantage Cadet"
Gold can become "AAdvantage Ensign"
Platinum can become "AAdvantage Lieutenant"
a new 75K level can become "AAdvantage Commander"
EXP can become "AAdvantage Captain"
and a new level similar to UA's Global Services can become "AAdvantage AAdmiral"
Then they could give complimentary membership to the AAdmirals Club for AAdmirals and leave it as a buy in for other levels.
As a side promotion, AA could even match military members to the elite levels that correspond to their rank
Thoughts on this?