As others have indicated BA is clearly the winner in this race.

I also enjoy boarding directly from the backdoor of BA lounge to the plane at SFO. [inappropriate comment removed by moderator per rules.] It’s really civilized.
This is only available if you're on the 777. The A380 uses a different gate which is across the hall from the lounge.

Club suite, which you would have on the 777, kills Polaris. Last check VS is the old hospital ward config.

By the time of your trip the final old Club config 777 should be in the shop receiving the club suite cabin, so you don't have to fear that swap. Avoid the A380s for not only the old club config, but they're very delay prone.