Come to Newark...
Riding around in the monorails affords some great views and if I remember correctly, they take you to all the terminals and the parking lots....I remember one of the parking lots affording great views for pictures.
Definately come to Newark... Although NWA rarely flies the 727 here (do they even still have them) anymore, you will be able to spot some interesting aircraft among the jungle of Continental planes.
Or, if you want a real treat, fly jetBlue into JFK and rent a car and drive around the JFK complex.....there are so many spots, I cant even begin. My favorite is the old customs building named the Halmar building. Its apart from the airport complex but when you find it, its a great great place to shoot and watch.
The other side of the coin is that you also get to spend time in wonderful NYC!!!!! What could beat that?
By the way, I got an email from jetBlue saying there was a fare sale from FLL-JFK but I dont know when. Fares from $59 each way, I believe.
Anyway.... do what you will....but I think NYC is the place you are looking to go!