A380 / 4-Class / J / 11F
this was LAX-SYD in 4-class on QF12.
Pros: the front of J mini-cabin is quiet and isolated. despite the self-serve bar and lounge being very near, they are both under-used and so not a disturbance. the seats are spacious and the middle pair both have aisle access. the lavs are slightly aft near the galley. meals come quickly.
Cons: none really, unless you're very unlucky about loud folks using the lounge