Grew up in Arkansas - spent most of my junior high and high school years on Lake Greeson at Kirby Landing COE park.
My favorites in Arkansas are:
1) Devil's Den State Park - between Fayetteville and Fort Smith - be sure to come in from the north via AR-170 from the town of West Fork
2) Petit Jean SP - amazing place
3) Thompkins Bend COE Park on Lake Ouachita near Hot Springs
4) Lake Catherine SP - near Hot Springs
None of the other parks listed above is 'bad' all are worthy of a visit. But you probably aren't planning to spend two years touring Arkansas, which some could easily do.
Full-Time 2014 - ????
โNot all who wander are lost.โ
"You were supposed to turn back at the last street."
2012 Ram 2500 Mega Cab
2014 Flagstaff 832IKBS TT