Which of these association is mostly accepted by most stores?

Question

Visa , Mastercard, or American Express?

Answer 1

Most stores accept all 3 of these charge cards.

But my experience tells me the answer is VISA.

As a retailer you want to take what your customers use most and VISA seems to be the most popular card handed to the store  by the consumer.

American Express is a little harder to get, stricter credit standards.

Answer 2

Visa and Mastercard are almost always accepted at the same places.  AMEX is accepted at fewer and fewer places these days due to the high fees AMEX charges vendors.