I know I am in the minority, but I prefer campgrounds that fit the rig to the site if every site is not the same length and wide enough to accommodate slides. Nothing worse than having a reservation, getting to the campground and finding that all the sites big enough for you to fit in are taken by rigs that could have fit in a shorter or narrower site. Also rather discouraging to pull into a first come first serve campground that has a host (that could manage the campground) and find lots of vacant sites but the few that will fit bigger rigs are occupied by rigs that really don't need that long a site.
