Arguably, perhaps the best heavy cavalry unit in the Imperial Era would be the Towarzysz Veteran. Although the French gendarmes will have better speed and attack, the Imperial and Ottoman factions more hitpoints, and the Italian condottieri outrule them all, the Polish Towarzysz Veteran distinguishes itself in one department: cost. Polish heavy cavalry is a bit like Russian cavalry, but whereas the Russians will be digging around for that extra metal, the Poles will be able to skimp on wealth costs!