Ah yes, me scan reading as usual, missed that. Little to distinguish between BA/QF J on this route other than one bed is flat, the other is not. Food/service on QF is marginally better IMO, but that's subjective.

As for F, again, hard comparison to make. Lately I've been happy to make detours in order to pick up CX or SQ F. But if I had to make the choice, I'd go for both (QF outward and BA back).