did you forget rollo vs those kids?
to be fair, the two geasses are different.
charles's geass and lelouches ones are also different, so in essence it becomes a quickdraw fight.
unless charlses sword of ashbala can tip the scales or has some hax.
I think the sword is some kinda energy weapon.
wouldnt it be a mindfuck if these so called gods were actually geass users, and both charles and lelouch want the same thing?