Always pick the A seat for a chance at views on arrivals into EWR. You'll see either Manhattan (if landing from the north, runways 22) or the beautiful NJ Turnpike and Linden refinery (if landing from the south, runways 4). If they are using runway 29 (and they would only do that a couple of times a year, when the wind is howling 30-40+ kts from the NW), the A seat will still have the best view if coming from Europe. Only time the other side has the better view is coming from the south to land on runway 29. But those occasions are so rare you can ignore them.