AMEX PRG - $195 AF
3x on flight
2x on *U.S.* Restaurants, Gas, Groceries
Random: $100 airline credit
Chase SP - $95 AF
2x on travel + dining
Random: Primary Rental Insurance
Only Chase SP has primary CDW coverage.
Incorrect. All Amex cards have primary CDW as well, it
officially costs $25, but you can rent the car on your Amex card and if nothing happens to the car (so you don't need to come onto the primary CDW), you can switch the card upon returning the car and pay using a different card.
IMO, if something does happen to the car, Amex insurance is a lot easier to deal with than Chase insurance (yes, I'm talking from experience of dealing with crashes with Amex and Chase SP).