Location: Fight takes place in the Senate Chamber, where Yoda fought Sidious.
Fighters: RoTS Sidious vs RoTS Mace, Obi-Wan, and Light-Side RoTS Anakin
Scenario: Mace waits for Kenobi to return, and asks Anakin to join them in arresting Palpatine.
Palpatine can sense the 3 Masters approaching and suspects Anakin's betrayal.
Round 1: In-Character.
Round 2: Bloodlusted
Bonus: If Sidious wins overwhelmingly, the Fodder, Plo Kloon, Agen Kolar, and Saesee Tiin are also present. (Original group that Mace had with him)