I would vote for Subutai.
He was the only person to conquer all of Asia ( In twenty years!). Also the only one to conquer Russia and the only thing that stopped him from conquering Europe was that the Khan died. Compare that to Caesar or Alexander.
He was the only person to conquer all of Asia ( In twenty years!). Also the only one to conquer Russia and the only thing that stopped him from conquering Europe was that the Khan died. Compare that to Caesar or Alexander.