Personally 2800 loop is my favorite. It's large, quiet, not next to pools, you can get pretty far away from the road in the back of the loop, and about 70% of the outside cabins have no other cabins in your 'backyard'. 2700 loop isn't too bad either, as long as you avoid the higher number cabins that get closer to the pool (noise-wise, but not if you like the pool). The 2300 and 2500 loops are small, but if you request 'back of loop, outside', then you get peaceful woods and a canal behind you - also not too bad.
I always have a cart, so I always request backs of loops as I don't need to walk to busses or anything. In general, requesting 'outside' loop cabins are more peaceful as the inside loop cabins can sometimes have other cabins visible out the back as well as to both sides of you - I like more of a sense of wilderness so the fewer other cabins I see and the more woods I see, the better.