There really isn't a point in this case for a few reasons. First of all, a 3 star from the bottom with Dragons is near impossible, and those foolish enough to do that would get destroyed. That leaves the top and sides vulnerable, and that is why the Air Sweeper faces the top. It deters dragons from reaching the Town Hall, and if you are not content with its direction you can turn it to face the bottom so it covers two Air Defenses and the sides.
i'd prefer to put air sweeper beside a AD if i were u...so u can keep at least 1 AD from dragon fire...
Thank you! And yes, the AS faces up to deter a Northern attack.
Awesome base, although whichway is the Airsweeper facing? my guess is straight up toward those archer towers.