Amex vs Mastercard for a secured credit card?

• credit card no interest
• paying off credit card
• credit card processor
• fast secured credit card
• business credit cards secured
• local business places

Any particular reasons one would be better than the other? What kind of cases? It won't be used daily, just for things like gasoline, groceries, and phone apps. In particular, the USAA secured credit card

Amex vs Mastercard for a secured credit card?