I did BOS-LAX on Easter Sunday. Until just before boarding, there were only two of us in the F cabin. I think one was some form of opp-up that happened just before the door closed.
I'm taking this route as part of a BOS-LAX-PEK route. As has been discussed at length, the east coast to Asia routes really stink. My business partner is flying UA and gets home like 7 hours earlier than I do, as my layover in LAX is just about that long.