I got the card last month for the sign up bonus worth $ 456 in free travel, the double miles on all purchases, the free subscription to TripIt Pro, and the ability to redeem miles for any flight on any airline
without searching for award space.
These are the two best cards
for domestic economy flights since they can be used
for the cheapest or most convenient itinerary
without having to
search for award space AND you get all the perks of a paid ticket like earning miles and status.