Argentina - International Credit Card Exchange Rates
This is my first time in Argentina - EZE airport baggage claim advertised special tourist rates for foreigners when using Visa cards. I can see that on the Visa exchange rate site that they offer around ~1200 ARS per USD. Google suggests the official rate is closer to 900 ARS.
Do MasterCard and American Express offer similar exchange rates to Visa, or should we always just use our Visa credit cards?