I am planing to watch R1, R2 again with Akito the Exiled but will be joined by a person who have no idea about Code Geass before.
I know Akito the Exiled take place between R1 and R2 from the similar question but I have no idea how much they are related to each other in details.
So what is the best order to watch R1, R2 and Akito the Exiled without getting anything spoiled in advance?