I am going to disagree with the Starwood crowd - you get pretty much just 1 point/$ spent, 1.25 if you count the transfer bonus. I would go for one of the Chase Inks, 5x points on business expenses, 2x on gas, transferable to a number of partners (unfortunately AA not being one of them). It comes with a 50K signup bonus. You could supplement it with an AA Visa (and the Business Visa) for a quick 100K points signup bonus on AA.