Alternative:

Get a good all cavalry army to make their armies run around the battlefield getting tired while you pick and decimate their least armoured troops (a lot of HA micro-management here). After having secured numerical advantage just charge and repeat with your heavy cav. Have a resuplier army nearby to replenish your battle army after the victory. Use these 2 armies as a raiding team to go deep in to enemy territory and ravage their cities. Raze them to the ground. This will hamper their developement and only allow them to field Pantodapoi armies (=easy kills) after this.