disneynovice,
I will try to answer your questions. We stayed in a cabin in Nov 2000. We were in loop 2600 cabin # 2604. The cabin location was great for us, we were near the front of the loop, the bus stop was very close, the quiet pool and laundry was just across the road. We had a golf cart and used it to go to the trading posts, Trail's End, and the marina, you could also use an internal bus. This was the first time we stayed at FW so I don't have any other cabin location experiences to compare to.
We used the bus transportation to get to all the parks. For EE at MK we took the bus to the TTC and then got on the monorail and got there in plenty of time. The other times we went to MK we used the boat. For Epcot we took the bus to TTC and got on the monorail. For MGM we took bus to TTC and transfered to another bus. For AK we got a direct bus from the bus stop near Pioneer Hall.
We did EE at all parks and got there in time. FW transportation gets a lot of negative comments which is unfortunate. There were 3 adults in our party and all of us thought the transportation was just fine.
Have a great trip!