babylonian bowmen and horse are a good attack and can hold even sword. Match for jags and impies and no resource. an underated civ and uu. a favorite when i play multiplayer, as it matches the impi and jag and numidean and comes early enough to impact the game before sword dominates, but by then u should have sword as well. if not, skip iron, build bow and horse.
'Course i did get slaughtered once when for some reason my bowmen really suxed and lost to warriors and the like...i sugggest use them to counter sword and archers and defense. let horse do the rest.