The most exclusive credit card in the USA and one that is very hard to get and is mostly used by millionaires is the JP Morgan Chase Palladium Visa.
Then other pretty exclusive credit cards besides the JP Morgan Chase Palladium Visa are the Citigroup Chairman Card, American Express Centurion Card, Coutts World Silk Card and the Stratus Rewards Visa.
Those are very hard and exclusive cards to get and you're doing very well financially if you're getting any of the above credit cards.