What is a good credit card to sign up for a small business for gaining the best frequent flyer points?

What is a good credit card to sign up for a small business for gaining the best frequent flyer points? I travel once a year and would like to earn points paying bills/expenses/tax etc.

I am also wondering if oneworld would be the best program to join? I'm not really a fan of flying with qantas but it seems oneworld is the best program to join to fly most places around the world. I'm mainly interested in travels to north and south america and asia.

A Qantas American Express Corporate card is what you should get. But for all purchases that you can receive QFF points, your stock-standard AMEX Corporate card is what I have. I have a supplementary of my father's, but I still receive points for using it on all purchases. Whether it be a taxi ride or what have you.

I have looked into this before too. We went with the Westpac Altitude Business cards as we avoid the ‘what to do if American Express is not accepted’ issue. I also like how you can choose to convert the points to Cathay Pacific, Air NZ, Malaysia, Singapore or Velocity points.