I'm a single RVer that requires at least electric for medical equipment. I drive a 'C' and pull a Jeep Wrangler 4 down. So I seek out parks that have a minimum of pull thru sites with cable TV and 30A electric. Laundry facilities are a bonus. For those reasons I usually stay at KOAs. If they have a pool or other activities for kids I ask for a space away from those simply because I won't be using them and families will. If I'm staying for a week or more to tour the area I'm gone all day anyway.
RV Park Reviews answers those questions for me or usually has a listed phone number.