The floor plan above is a typical one for a CORNER 3 room unit. The main difference are the windows found on the side of the units. These windows allow more light and air to come into the flat. Also, if you need more rooms, it is also possible to configure a 3 bedroom layout as opposed to the INTERMEDIATE units.
So the obvious units to go for are the CORNER units. But then again, you must have the patience, determination and a bit of luck to get to buy one of these CORNER units.
The reality is that it is already hard enough to wait for someone here to sell, let alone a CORNER unit. So most of time, buyers eventually compromise.