Gotta love FatWallet

Check out the following ratio of rewards points to free Southwest roundtrips:

Southwest Rapid Rewards Visa: 18,000:1
American Express: 25,000:1
American Express (Fatwallet Style): 25,000:3

Lesson: FatWallet makes your AMEX 3X as powerful. If you don't visit FatWallet, at least go to SlickDeals.