Originally Posted by
david22
@LondonElite Thanks. I saw that thread and it had some good info but the poster was first asking about F cabins and then J cabins but not really comparing the value between F vs. J (except with Virgin Upper Class since they don't have F). Maybe a bit to squishy though to make those kind of tradeoffs. [Now that I think about it, this post probably belongs in that forum too.]
As always, it depends on you. On an eastbound flight to LHR, I would seek to maxmise sleep over anything else. The F cabin will have better wines and give you pyjamas and all that jazz, but what you really want to do is sleep. I have said it on FT many times before, I have turned down upgrade offers on BA from J to F because a good seat on the UD on a 747 has more room than the relatively cramped F cabin downstairs. Don't get me wrong, I really like BA F, but on a flight like that I would choose the best sleeping option over anything else. Daytime return I would definitely go BA F. Both are significantly superior to UA F or J (and I know both).