It's difficult to say without knowing more about your credit history and financial situation. However, both the Uber Visa and the Amazon Prime Visa are credit cards designed for people with good to excellent credit. So if you have a strong credit history and financial stability, your chances of being approved for either card are good.
The Uber Visa is a rewards card that offers 4% back on dining, 3% back on travel, 2% back on online purchases, and 1% back on all other purchases. It also comes with a $100 sign-up bonus after you spend $500 in the first 90 days. The Amazon Prime Visa, on the other hand, is a cash back card that offers 3% back at Amazon and Whole Foods, 2% back at gas stations, restaurants, and drugstores, and 1% back on all other purchases. It also comes with a $70 Amazon.com gift card upon approval.
So, if you're looking for a rewards card with a sign-up bonus, the Uber Visa might be a better option. But if you're a loyal Amazon shopper, the Amazon Prime Visa could be a better fit. Ultimately, the best way to know for sure is to apply for both cards and see which one approves you.