The request is often "closest to the elevators" which would make for the shortest walk to EPCOT. As @disneynutz indicated, that is also close to the drive-up registration area with the various noise associated with that especially the DME luggage cages.
Personally, we prefer to be "across from the bus stop" which is convenient to EPCOT, DHS and the bus system. Even if you plan on spending most of your time in EPCOT, it is a fairly easy walk up the drive and then down the steps to the Boardwalk area leading to EPCOT.