Most of the RV Resorts we have stayed at have similar amenities as resort hotels. Lusciously landscaped grounds, larger pool and spa, gym, conference rooms, store, nice restrooms and showers, campsites are paved and level with landscaping between sites, security, planned activities...etc. One we stayed at even offered room service from the adjacent restaurant.
An RV Park will have some of the above but tends to be more like what you would get at Motel 6 or Holiday Inn Express. Fewer Amenities... Somewhat landscaped, unpaved sites with little separation between units, so-so restrooms and showers, smaller pool and maybe a spa...etc