If this flexibility wasn't enough, mileage transfers also offer superior value. (wisebread.com)
I've carried the Starwood Preferred Guest ® Credit Card from American Express since 2001 because they have the most full value airline mileage transfer partners and because when you transfer points into 20,000 airline miles, you get 5000 additional bonus miles. (viewfromthewing.boardingarea.com)
The Starwood Preferred Guest program has more than 30 airline mileage transfer partners. (cardsfortravel.com)