At this point mostly looking at model noise. The exact distribution of the snowfall is going to be a nowcast situation (as almost always) with areas to the east favored...but there will be outliers like the 12Z GFS showing 21" for PHL while the Canadian shows 10". No great reason to pick one depiction over the other, both are plausible in this setup. Storm bears resemblance to Boxing Day 2010 but with a less extreme gradient (as currently depicted in the modeling)...but even in that storm it wasn't purely east-west in the snow totals...and with all the blowing and drifting will be hard to say who gets what, exactly. Right now I'd forecast 10" to 20" across NJ and call it a day unless something really surprises us as the day progresses.