For an $80 difference over Y (I still scratch my head about that pricing for that flight) flew VX DEN-SFO.
I have never had such a wonderful experience in F on any domestic airline -- huge comfortable seats, seat pitch glorious, hot towels at the beginning and end, hot breakfast with printed menus and two choices (very good too!), and a small amenity kit given out.
Would that AS would copy this version of First Class instead of no doubt eliminating it