Hi Martyn, while I’ve flown LH F, it was in their old 747’s upperdeck with a 16 seat config. In this Swiss win hands down as they did not make a bed for you and the seats were (seemed) much narrower than either Swiss or BA. They also have this awful habit that if only one pax wants breakfast they put all the cabin lights on about 2 hours before landing, which on the CPT or JNB flight means around 3.30 – 4.00 in the morning!!!
In addition, becuase it’s upstairs you have to drag your hand baggage up the stairs and I always hit my head on the overhead lockers – ouch!
One plus point is the size of the bathroom, and on the 747 LH win by a mile over Swiss and BA.
I’ve not yet flown the LH A380 in F with the new 8 seat config and am very keen to try it. Maybe my next trip will provide the opportunity?