...I'm newly based in NYC (most accessible airport would be EWR or JFK); typically fly to SFO, MCO, MIA, FLL, RDU, EWN, YUL, LHR, AMS, SYD, and MAD; typically fly 5-10 domestic trips/year (max 15% business) and 2-3 international/year (100% personal travel)
...I'm currently Platinum on AAdvantage (used to be based out of MIA) but don't have any status with other programs; this year was my first time ever to reach Platinum; Gold is more typical and more likely in 2011 unless I do some major flying in the final quarter of this year;
...I typically fly Economy as long as I can pre-select exit seats online;
...I typically use my miles and status to upgrade to Business, less commonly to purchase free trips;
...I typically use a Starwood AmEx card to accrue hotel points rather than miles;
...I have enjoyed AA's benefits and the ease of their online reservation system, but I prefer newer planes and leather seats, which are not AA's forte. However, I don't think NYC is a true hub for AA.

I would greatly appreciate guidance from the experienced and savvy members of this forum. Many thanks in advance!