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I vote for LAX because it has decent spotting locations, which the others lack.


Next time you have some time you'd like to kill in New York let me know - JFK has some really outstanding spotting locations I can show you. I will grant you that the spotting opportunities as a passenger are very poor at JFK, but if you're willing to venture off-airport there are many different spots that work well. And MIA is the only airport I'm aware of in the United States where the authorities have provided holes in the airport fence to allow photographers to poke their lenses through.