Well, most car companies are going to a different method of figuring miles. I guess they're tired of giving frequent flyers 500 miles for a one day $40 rental.

Since I'm going to be renting with Hertz for the first time shortly I was looking at what they offer, and it looked to me like Marriot Rewards Points were the best deal. I'm going to Detroit in September, and using my Delta Gold Medallion discount #, I'm getting a free two car class upgrade from a full-size two-door for only $25/day, plus taking Marriott Rewards Points I'll get 1,000 free points (which I need anyway for a free stay I'm going to take next year).