Alaska takes good care of me, and I return the favor by doing most of my flying with them. After a few years together, we kind of understand each other. They have plenty of flights to Vegas so I have slots of options. Service is good, in coach or for the high rollers up front.
Terminal 3 is a big improvement over the old terminal. I can often get an upgrade to first class between SEA and LAS which is nice. Luck be a lady tonight.