1. Aizen does not have KS
2. Aizen Starts out in his final form
3. No flight
4. Battle takes place in fake Karakura town
5. Both fighters are 2 meters apart.
6. No prep time
7. No reiatsu crush for Aizen and Josuke cannot phase through Aizen with Crazy Diamond
8. Josuke's hair was just dissed by Aizen