Was refurbished, 747 PE 2-4-2 config and seemed crowded. 36 seats, 1 toilet.
But 36JK bulkhead seats are great if available (otherwise I'd avoid). With a recliner in front for the entire trip, it was difficult to exit from 37JK.
A380 PE is only 2-3-2 config. I've only travelled old A380 configuration (PE to LHR) & that was more enjoyable than the 747 PE to HKG.