Originally Posted by
tmiw
Mastercard is the best, IMO. AmEx has extremely limited acceptance abroad depending on where you're going, uses forex rates that are likely in between MC (best) and Visa's (worst) and also apparently mandates MSD-only contactless for US cards on mobile wallets. The one upside of AmEx is DCC protection but DCC itself is avoidable most places if you know what to look for/do.
Amex has contactless cards in the US tho, and mandates those support ODA. The mobile wallet situation is due to the horrendous US contactless compatibility, and is more domestic-focused.
I get it, hesitantly I get it. I think it's best to have a physical contactless Amex AND a Mastercard for travel. Visa is useless, ofc. Except the Schwab Visa because they pay ATM fees.