Thought #1: US Air changed its name to US Airways!
Looking at your list I might move US above AA and UA. US has a (IMHO) better upgrade program than the other two. No other airlines offer TransAtlantic upgrades to the lower level elites the way US does. Of course if you add the general flying experience into the equation, US probably gets bumped right back where it started because it lacks the Economy Plus cabin that UA offers it elites and the MRTC program for AA's coach product.