I've been living in NJ for close to a year now, and I dont like it that much. Car insurance costs a bundle, property is expensive, pollution is rampant, the air smells, the New Jersey Turnpike is expensive and congested, etc.
I enjoyed my time when I was in Delaware, property is quite cheap, no sales tax on anything, close enough to Philly that you could go there if you get bored.
I also like the Washington, DC metro area, I was raised in suburban Maryland, so I am biased of course, but I think it's a great place to live.
--Ben