4267627c_Gold_Versus_Silver__Reason
[Winner] Silver [Silver Details] According to Wikipedia, a Roman soldier would typically be paid 1 denarius per day of work, equating to at least US$58 (based on minimum wage). At between 3.4-3.9g per coin, that works out to $462 to $530 an ounce. These are just rough estimates, though! [Gold Details] The Aureus was about 7.3-8g of gold, and equal to 25 denari. That works out to a silver:gold ratio of about 11-12:1, or gold being valued at roughly $5,000 an ounce (based on the labor it could buy). These are just rough estimates, though! [Reason] 
Roman pay
Gold Versus Silver
Reason