If you mean closest to walk to, I don't think it matters. Standard views are on one side of the hall and preferred views are on the other side. You will probably want to ask to be close to an elevator because far from the elevators down by the tennis courts you will be quite a distance from the dock. If you just mean distance (as the crow flys) then the Boardwalk view rooms as as clsoe as you can get but you still have to walk to the elevators and go down the same way as everyone else. I can't think of any exits or back stairways that empty onto the Boardwalk near the dock like many do to the Quiet and Luna Park Pools.
HBC