Actually, I prefer the full hook ups for my pop up. It saves me from having to use the gray water tank and dump it every couple of days. I do see quite a few people dumping the gray water on the ground, but that is both unhealthy and illegal in Florida.
Now, off my soapbox and on to your question....
I actually prefer the 2000 loop because it is back out of the way of everything. When we stay in the pet loops I like the back ones for the same reason. Additionally, the underbrush in the 1500 loop was totally cleared out about 18 months ago. Dut to the size of the loop, configuration of the sites as well as this brush removal it does not appear to have the privacy of most of the other loops.
Check out my site below, then use the menus on the left for more pop up information. I even have a few pages that deal with gray water and the issue in Florida.