Holding this position locks down 1 ground attack path, taking a gold here doesn't mean you are ahead, because your opponent my take a defend his own gold as easily as you
right bottom middle of the map
Overview of Alter of the Immortals
Map Veiw
Directly diagonal from you, because it is a symmetrical map
Main base, 2 medium sized ramps, 1 is blocked off with in-base natural but is really close flying distance to your opponent, making any aerial harassment more dangerous.