After extensive “research”, I’ve concluded that the @shakeshack at JFK T4′s Gate B36 is superior to the Shack at Gate B20. Really. I always have the better burger there. It’s the older Shake Shake location, so maybe it’s the seasoned grill or the more experienced staff, but they always cook and build their burgers more competently than the new shop does. The B20 location’s burgers always come out well done, crispier and messier. At least that’s my observation.