From the west coast, here's some we've enjoyed. Trying to remember ones that would be appropriate for larger units and with full hookups (we have historically not used full hookups, which may well change):
WA - Deception Pass State Park - gorgeous setting on Puget Sound, older campground with fairly good screening between sites. Beautiful sunsets, plus a fresh water lake for swimming and fishing. Great in late summer/fall when the humpies (dog salmon) are running. Best to get reservations.
http://parks.state.wa.us/497/D... You can also look at other state parks from this site. This is our favorite, and about an hour from home so it's our go-to park.
WA - Rasar State Park - newer campground on the Skagit River, really good eagle watching in January/February.
http://parks.state.wa.us/571/R...
AZ - Lost Dutchman State Park - outside of Phoenix at the foot of the Superstition Mountains. What a beautiful rock feature, with good hiking and a nice view down the valley. Very clean park.
http://azstateparks.com/Parks/...
I'll have to look through my camper journal for others. Hole in the Wall was another favorite in the Mojave, but I don't think it had any hookups and was a bit off-route. I loved it for the serenity and the 'singing dunes,' very cool.
