I vote for Alaska also. The 20,000 redemption level is great, especially since they fly to the East Coast now. They partner with more airlines than any other FF program. In addition, they have mileage sales that can't be beat. For example, they are currently having a "Winter Award Sale" where tickets between any city in Colorado, Montana, Idaho, Oregon, or Washington and the California cities of San Francisco, Oakland, San Jose, Sacramento, or Long Beach are only 13,000 miles.