One more vote for RVparkreviews, but and this is a big but please post a review of where you visit. The site is only good if there are lots of sites being reviewed on an ongoing basis.
You will see all the time on here many of us talking about it and using some common sense when reading reviews. Well if there are only 2 reviews and 1 is a year old loving the place and the other is only slightly newer and hating the place hard to sort it out. Now if there are a dozen reviews and the other 8 all review at 7-8 with good descriptions of why you will probably discard the original 2 reviews above and make a decision.