On a closely-related topic if the OP is planning to route via SFO.
Is the new CX Lounge in SFO comparable to that in T3? Is it accessible available to people flying ex-SFO on BA flight? - is it available to people connecting to AA domestic flights?
I've never been a fan of the F "Room" in SFO and actually choose to sit in the main lounge. WHile it does the job it's certainly not the greatest BA lounge i the system, feeling more 'domestic' than a premium international lounge to me.