Tobirama should have made Kagami Uchiha the third hokage because he held the Will of Fire and he was assumed to be pretty powerful. It would be more of a political choice though because the Uchiha felt that they where ignored, and by making one of them the Hokage they wouldn't feel like planning a Coup.
I know it wasn't done because of Plot no Jutsu, but it would have been the right choice.
I know it wasn't done because of Plot no Jutsu, but it would have been the right choice.