Newark's not so bad if you time your flight right. You can also skip airport parking if you're on a rail line by taking NJ Transit to the EWR Airport Monorail (AirTrain) which is a fairly easy connection.
I've not flown internationally in about 20 years, though, so I'm not the best judge. (I flew from EWR to Heathrow one year and the following year from EWR to Toronto. We typically fly domestic.)
Philly's a good airport, too, but I can't comment on its international flights.
I would NOT plan to fly out of JFK or LGA, especially if you live in the NJ 'burbs, because getting there is a nightmare. Two bridges and some very highly traveled roads are enough to give us pause for domestic flights! (Add that to the recent toll increase for said bridges and any money we'd save by flying out of either would be spent on tolls!)
We are in Mercer County, near Princeton. There are some nice parks in the area, but I don't like how densely populated it is here.
I grew up in Passaic County, near almost nothing. Honestly, I feel the need to "defend" my part of the state from someone who commented about NJ without ever having lived here - please, don't think that every part of the state is wall-to-wall people. My hometown is great for outdoorsy things - it's home to two state parks, four lake communities and lots of hiking, hunting & fishing.
Friends of mine with kids in the school system feel the schools are pretty good and serve their kids well.
If I had a choice, and COL was not a huge factor, I'd like to move to the Morristown area because I think it could be a decent compromise with DH needing to have street lights (don't ask.)
While I like the idea of living in Chatham, I would be OK with Randolph or Millburn in Morris County. There are a lot of really nice communities in the area that are near rail lines that will take you to Manhattan, if that interests you.
I am also partial to Bergen County, but the taxes can be high and if you live in some areas, you're kind of inundated by traffic around the shopping malls. It's do-able to Morristown, but it might end up being a lot of traffic on 208.
If you want PA-like conditions, you can also try Sussex County, but it'll be less convenient to Newark Airport than other counties.
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Liz
DD (3/2010)
"Make mistakes! Get messy!" - Miss Frizzle