Not at HKG. CX have arrivals lounges at HKG and LHR.

The Arrival lounge isn't particularly impressive... better than nothing

Do a quick search, this particular subject has been discussed in depth recently. For me CX all of the time. But it sounds like you are bored of CX so perhaps BA for something new. Then you will return to CX with a spring in your step.

I thought the OP was bored with VS, and wants to choose between BA and CX?

Both correct

Both are good airlines, I know people find differences between them, but it's for the birds in my view, both airline should give you a good experience. The only other factor not so far mentioned - and that may work better for CX - is the change fee. I know you don't book tickets expecting to change them, and I rarely need to do it, but stuff does happen!

Otherwise if there is a lot of baggage BA has a clear advantage, CX is pretty mean in comparison, and the hand luggage on BA is not 10 kgs, it's 2 bags essentially, 1 a full carrier bag, the other a smaller bagpack or something, which won't be weighed - you just need to able to lift them into the locker unaided.

Apart from the baggage issue, personally I'd go on timetable, and if that is no difference then go on cost, particularly if the BA service is the A380. 777 isn't brilliant on either airline, mainly thanks to the fact that 777s are noisy bone rattlers compared to A380s.

CX for hard-product (i.e. seat) reasons for me. BA UD on 747 would be different story and I might consider that instead.

CX - no brainer

In that case CX all day long.

Surprised nobody has mentioned the coughing, spluttering and general unpleasantness that seems to accompany my trips in CX J.

As for F&B - i iike both

Not that simple. CX are able to efficiently provide for a more evenly distributed schedule, whereas BA needed to follow a similar routine for aircraft utilisation, (BA planes are already on the ground for several hours as it is) with evidence that a morning LHR departure arriving dawn HKG, returning morning from HKG into LHR afternoon would not be popular - it is either that or a 3rd almost identically timed flight which yields probably cant support. I think the 3rd also was helped when there was more of a joint business with Qantas.

The fact is BAs schedule only really works thanks to the very early landing pre-curfew slots it has, otherwise you have to hang around to past 1am to arrive for a post curfew slot. Which again isn't ideal.

So CX does give you more mix and match scheduling if you prefer a day flight to LHR - but other than that I'd choose BA.

This answer is answered by my general rule to never fly BA long haul east from London. South, southwest, and west - sure. But never east or southeast. There are always better OW options available.

The caveat is when schedule doesn't permit the sometimes necessary additional connection.

But if time permits, I would fly QR via DOH and if not CX via HKG anywhere in Asia/the ME over BA non-stop.

That and the fact that HKG is a hub into Asia which CX build its entire airline on.... BA is TATL.

Another good point - although there is similar transfer traffic ex-HKG going into Europe on BA one would imagine

Different. And it is not BA's 'business model'. AFKL is more aiming towards that, focused on China.