For me, as an AA passenger, JFK is great! Flagship Check-In with TSA Pre means I'm in the Flagship Lounge in less than 5 mins from the curb 90% of the time. T8 is bright and airy and new and not too big (compare to say T4 and the epic walks to even get to the DL Skyclub, or the clusterfudge that is security there). That's before I factor unique things to me such as "my guy" in the Flagship Lounge who my wife and I have got to know well due to regular visits that delivers phenomenal service consistently, etc.

The only JFK gripes I have are that the evening rush hour can mean longer taxi times (that said on a 5.30pm departure last week we were in the air 10mins after pushback) and although T8 is compact a great percentage of my flights seem to go from the further gates in the satellite concourse!