Bonus: Starwood American Express
Starwood is currently offering a special bonus on their Starwood American Express Card. Typically, you'll see a 25,000 point bonus but the special they're offering today is 30,000 points. The great thing about the Starwood Amex is that you can transfer points to airlines at a discount. For example, you can transfer 20,000 points to American Airlines and get 25,000 miles. This offer ends on Sept 14, 2015. This is clearly my favorite airline mile card.