I think others have covered the idea of requesting a specific site, but as with everything I;'ll add my $.02.
Some things to keep in mind when making a reservation at Fort Wilderness. The folks who answer the phone (i.e. reservations cast members) have differing levels of expertise regarding Fort Wilderness. There are tens of thousands of Disney hotel rooms fitting into a few categories such as Value, Moderate and Deluxe and most rooms, no mater what property have similar size rooms, room capacities and rules regarding the room. So, the reservations cast members have most of the information regarding rooms in their head. Except for the exceptional reservations cast members, for Fort Wilderness they usually read what is on the screen in front of them. You may need to guide them with your reservation as you may actually know more about the campground then they do. At the very least, make sure they note the following things in the comments for your reservation:
* Type of camping unit (i.e. trailer, tent, motorhome/coach etc.)
* Length of your entire rig including tow vehicles and toads
* Number/location of all awnings
* Number/location of all slides
* Let them know if you have pets
When making reservations you can ask to be assigned to a specific loop, and they will even note a specific favorite site, but remember nothing is guaranteed!
Now, with that said I will give you my personal opinion. Make your site selection known when you make your reservation so they can note it on your reservation. You are much better off requesting the things you like about the site/loop rather than the site/loop itself. For example, if you like the site because it is near a comfort station, then request that, if you like it because it is in the back of the loop and is quieter request that. The problem with asking for a specific site/loop is that the site assigners really don't know why you wanted that site/loop. If your request is not available they really don't know what you might find as a comparable site.
