who wins a war between the major factions in avatar all are at there peak, and have there armies and banned characters w who sided with them. The avatar sits the war out. Most sides are Last Airbender Era.
The Fire Nation ( they get Zuko, Iroh, as well as the Firelord and other named Fire Nation characters)
The Earth Kingdom ( they get Toph, Buumi, the Boulder and the others)
The Water Tribes ( north, south, and swamp)
the Equallists ( they get Union City and there factories)
and for a bonus fight add the Navi who can breath air for the fight. they have an island off the coast of the main continent which had Pandora wildlife, including mounts.