Like Canarsie said, I'd obviously go with whoever took over the SM's program. But if that didn't happen, I'd probably revert to UA for transcon domestic, Hawaii and international. And WN for short hops.
UA was my first choice of carriers when I lived in the Midwest and I racked up somewhere around a million miles with them.....most of which I've since burned.
UA has great service to Hawaii and also to Europe so they'd fit my situation pretty well.
Hey.....I've almost talked myself into switching NOW.