While some would consider the egypt overpowered. In the right hands I gotta say that they have got to be imho the best army. I mean they can fight in almost any style and have enough flexibility to go from a steppe easten style army with chariot/camel archers, to greek style with all those spear units and barb like axemen, and ive not even mentioned the archers! If anything the egyptians lack real heavy cav, but the armor piecing cav and chariots come close to filling that gap. Not only that but if you play in the campaign egypt can get access to some decent mercs like elephants and num cav. The only other army I can see even coming close to the flexibility is armenia, if you prefer heavy cav. Flexibility to fight any army is close to what could be considered best army at least imho.