Hey Krista,
I am going during Jersey Week because I am, well, from NJ and my kids have off. I can't deal with crowds either but I think that week will be fine.
I do recommend TourGuide Mike (click on link above). I just used him for my last trip and will use him again for Jersey week. It's like $20 to join and he gives so much good info, but his "red-yellow-green" days info is worth the purchase price alone. He will tell you what days to go to what park--green days are "go", yellow days are "go with caution" and red days are "don't go unless you absolutely have to". I followed his advice and went to the each park when it was a green for all the days of my trip except for one. (It was a yellow and I had to go because we wanted to see Spectro). He was right on- the parks were empty, except that yellow day at MK.
I'll see ya then!