Check out our blog in my signature, as well as the links to our older blogs form our previous campers. We live in CT and often go north. VT state parks are our favorite, but be aware that none of the state or national parks up here have hookups. So we tend to try to hit them in the spring and fall when we know we can get by with 12v fans rather than A/C.
How old are your kids? In NH you might want to check out Moose Hillock (there is now one in NY as well, but NH was first) - great combination of state park-ish size sites with an awesome themed pool with waterslides in the White Mountains. We also like the Chocorua KOA in NH.
For Acadia we like Smuggler's Notch, a private CG that borders some of teh NP land on the quieter side of Mount Desert Island.
In VT we have yet to hit a state park we haven't liked. We've had some really prime waterfront sites, but some of those need to be booked well in advance. We really like Woodford State Park near Bennington (and you can hit the Battle of Bennington monument and hike a section of the AT), The Burlington area is very cool and we stayed at Little River SP to explore that area. Ben & Jerry's is up in that area as well as the Shelburne museum, which is cool.