I liked Ponchartrain Landing because it is a PassportAmerica park good for one week (some are only PPA for 3 days or so), had the shuttle to downtown (very handy), and it was fairly easy to get to in a big ol' class A.
There's a bar/restaurant on the grounds, and although the sites are gravel and relatively small and sparce, I was there to visit New Orleans not the RV park. Wifi was weak but usable. Cell reception was great so that's a way to get Wifi if needed.
Really loved that shuttle. Used it nearly everyday for the week I stayed there.