Originally Posted by
Laser_Man
It just felt like the Superman part was two issues of setup so Joker can come in and take over the story in the final issue. It was a copout to see Superman relegated to the supporting role in the last act so Joker can save the world.
In Emperor Joker, Superman is the one who saves the world in the end.
It was like Aaron was only interested in writing a Joker story so he used a Superman comics for that (even though he is also writing a Batman story at the moment).