Originally Posted by Rojo
Just ran out of cash on my last day in Buenos Aires, Argentina so I decided not to withdraw money from an ATM and pay with my credit card for anything I needed the last day. I went to the airport (EZE) and thought that I could pay the airport tax with my Mastercard. To my surprise, the airport (Argentina 2000) only takes Visa and American Express and I only had my MasterCard in my pocket... Next time I will take my Visa also!!
Moral of the story - always have both on you... which really begs the question, why care which of the two is "best" - you'll need them both at some point so you might as well get both. The real question comes down to of the Visa and MC cards out there, which offer the best "advantages" - and then get them both!