User blog comment:The Deadliest Warrior/Alexander the Great vs. Genghis Khan: The Greatest Men on Earth Round 1/@comment-422690-20101127035709

Simply put, most overestimate Alexander and underestimate Kahn. Kahn's horseback archers are his main strength in this fight; mounted archery is a key advantage that can easily turn the tide of the battle. A well-trained mounted archer can fire while retreating, and so keep harrying Alexander's forces before springing the trap you described above. Both generals were brilliant, but it is not only tactics that will win this. It's the soldiers they ahve. If eitehr of tehm were different warriors I would bring into play how well they used them, but both Kahn and Alexander have proven themselves adept at using their men when and where they are best.