User blog comment:El Alamein/Companion Cavalry vs. Sipahi/@comment-422690-20140307010328

Close Range 1: Kilij wins. Both the Kilij and the Kopis are excellent swords, though at different things. The Kilij will be very effective against the Companion Cavalry, due to the lack of protection for the limbs. The Kopis will be very effective against the Sipahi, since the forward curve helps it maneuver around shields. The Kilij, however, is better on horseback due to the backward curve of the blade concentrating the force on a smaller cutting area. Edge: Sipahi.

Close Range 2: Mace wins. This is really a no-brainer. The Xiphos is functionally identical to the Kopis, a sword primarily used for hacking with some small thrusting ability. It is, however, shorter and less able to maneuver around that steel shield the Sipahi has. The Mace, on the other hand, provides a nice source of blunt trauma that will hurt the Companion Cavalry anywhere, even on their cuirass due to the crushing force in the blade. Edge: Sipahi.

Mid Range: Xiphos wins. This is primarily due to the fact that it will, all other things being equal, have a greater momentum and piercing power from horseback, due to its length and weight. I have some serious doubts of getting anything longer than a 9-foot reach one-handed, and using it two-handed makes the horse harder to control, unless it's been specifically trained. This is all outweighed by the sheer stopping power of the weapon and the fact that it's far more useable on the ground than the lance. Edge: Companion Cavalry.

Long Range: Tie. Both lawn darts will be equally ineffective in this battle, involving small squads with high mobility. Edge: none.

X-Factors: Companion Cavalry takes this, with an average of 83.1 to the Sipahi's 81.6

Overall: Overall, I have to give this to the Sipahi. Normally, heavy cavalry would be able to take light cavalry on with little problem. However, the Companion Cavalry is remarkable poorly armored for heavy cavalry, likely due to their use to inflict damage on foes already hit by Alexander's main force. This leaves them quite exposed to the quick, effective strikes of the Sipahi. Winner: Sipahi.