Ditto what Phil said on location.
If you look at my signature, you can see I've stayed in all four levels of campsites with a popup. Here is the map for reference:
I am currently in a Preferred phase for the same reason he gave. We like the location relative to our touring style. We like going to the Fort annually but when we go our park days might number only 1 or 2. Always the MK though - in the last 5 years I've done 1 day at Epcot and 1 day at Studios. Sometimes we put a 2nd day at MK. But since MK is our primary park destination, we like being close to the boat dock to ride over to MK on the boats. When the kids (we have 3) were younger I liked 900 Premium because it was very close to the Meadow Trading Post area with the pool and the campfire/singalong/movie location (must do for your family - I post the movie schedule on the camping board each month and it gets stickied). It's also pretty shaded and only has 30 something sites so if you are in the back it's not a far walk to the front/Comfort Station/bus stop.
Never have requested a Premium but got put in one once when the Preferred were full. Didn't cost me extra but it felt silly with my little pop-up on all that concrete. And Premiums are the most expensive.
The thing about the tent loops 1500 and 2000 is that I LOVE 1500 and DESPISE 2000. 1500 is close to the pool area, has a bus stop at the front of it, and shares a Comfort Station with 1600 nearby. It's a small loop (only 20-something sites) so it's a short walk to most things. With 2000, I don't dislike the loop itself but it has nearly 70 campsites and although it has two Comfort Stations, they get a lot of use given everyone is in popups and tents with no sewer hookups. If I could be assured of getting 1500 I would book a Tent site every time. Also "groups" such as Girl Scouts, Boy Scouts, and others groups occupying several sites who celebrate the fact that the day ends in Y very loudly and late into the night particularly on weekends in fall and spring (we are a Scouting family so I'm not knocking that), it's just there's kids running around being kids across your campsite early in the morning, late at night, and then the party people don't observe the quiet hours and Disney is loathe to enforce the quiet time.
I'll stay in Tent sites in the future if the timing is right - hoping I get 1500. 1500 is preferred by many so it stays much more full than 2000 so it's harder to get into once you arrive. At least with a popup we have the option to go to any level of site.
Bama Ed
PS - here is a good resource I put together with the rack rate cost (with tax) of Fort campsites for 2017. It's helpful to see what time of year produces what rates at what level of site.
https://www.disboards.com/threads/s...-2017-fort-wilderness-campsite-rates.3526550/