For EP III I predict we will see the following fights;
Mace Windu vs Palpatine (Palpatine discovered as Sidious, confronted by Mace)
Anakin vs Obi Wan
Anakin vs Dooku (reminiscent of the Emporer trying to get Luke to kill Vader)
P.S Jango was killed by Mace Windu.
Madness is rare in individuals--but in groups, parties, nations, and ages it is the rule - Nietzsche