I stayed there last year during the summer while on holidays. I did take quite a few shots during the morning from the hotel room, Think I was on level 4 from memory and the view was pretty good, You are shooting through glass and at the time I was there it was clean,It is a fair distance from runway 22L so I was shooting at 400mm which was good for the bigger aircraft but not great for the smaller aircraft .It was good during the morning from around 6-9am before heat haze became a problem.
If they are using runway 31R during the morning you will be able to get some decent shots from the car park or from 246th as they fly over but they only used 31R while I was there during the afternoon which was no point.
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Photo © Mark A HarrisView Large View Medium
Photo © Mark A HarrisView Large View Medium
Photo © Mark A HarrisView Large View Medium
Photo © Mark A Harris
Cheers Mark