Favorite thing: I just loved the whole experience. You can find areas that aren't jammed with people like the eastern wall in the mornings.
Favorite thing: There are signs of early vandalism all through Cambodia and Angkor Wat. As many of the full statues weighed to much to cart off many of the heads were lopped off!!
Favorite thing: Get yourself a bicycle or motorbike to be able to see the whole area. You need to travel about 20km to see all the main temples in the Angkor area.