For a domestic flights nothing beats the ability to leave <1 hour before departure and still have time to grab food and coffee at the gate. After the loss of 500 mile minimum on US and this, AS or AA may become my primary program (albeit, I fly only ~50 segments a year, mainly short-haul).
For international (revenue or award), IAD is still, and always will be my preferred option (unless multiple segments) as a $60 taxi is worth the savings in time and potentially avoiding misconnects.