User blog comment:Urbancommando77/Persian Immortal VS Roman Centurion/@comment-2006360-20120307142747

Close Range: The Gladius is made of better metal and longer than the Persian Acinaces. Edge: Roman

Mid Range: Both are your usual spear. Edge: Even

Long: Bow beats javelin every time. Edge: Persian

Special: The Sagaris is much larger and made as a weapon. The Dolabra was rarely ever used as a real weapon save by the very unprepared legionary. Edge: Persian

Heavy: Scorpion takes too long to reload, and though both weapons are very poor, the Chariot Scythe can get through a foot soldier quick enough. Edge: Persian

Armor: The steel of the lorica segmentata alone is enough against Persian protection. Edge: Roman

And the Centurion wins closely, because of his better armor and training. In real history, the Romans beat the Persians before (don't ask me about Carrhae, that's a one-time thing), and they can do it now.