from where are you starting?my guess is peoria. consider starwood, as the points from *wd stays convert at 1.2:1 for airline miles. get a*wd amex, as those convert 1.2:1. reard about getting the 50k bonus cards.
i would worry more about the alliance. hopefully they will stay. i have had a lot of airlines that have left dc with my points, and others that left and transfered my points to useless airlines. delta is a prime example of a lousy miles airline, as far as i am concerned. i have 125k and my wife has 75k with delta, and i do not recall where the miles came from.
i think when swiss disappeared, so did our 200k miles.