TLC Wolf River is in Pass Christian MS and a short drive (minutes) north of the Gulf. I thought it was quiet nice with large sites and good location. It was not the high end resort type of thing with a big club house or organized activities, but it does have a small outdoor pool and it is right on the river too for fishing if you are inclined. I would stay there again, but I don't have children to keep entertained.
2 in AL are Styx River and Wilderness. Stayed at Styx and visited Wilderness. I preferred Styx, BUT....Wilderness is quieter and has bigger sites. Both have long term residents in them. Styx is a former KOA and has a big club house and things to do. The sites are tight but I was able to manuver my 30ft. trailer no problem. Its a good drive to the Gulf from there, 45 minutes or so. Enough things to do in the area and there is a battle ship in Moblie you can go through.
I have not been to Pine Lake in Fountain FL.