Have just flown Oz (Melbourne) to LHR on Emirates. On a 777 MEL -> DBX and then A380 DBX -> LHR. While the 777 looks good, there didn't seem to be much padding in the bum of the seats and they did seem a bit tight width wise. As much as Qantas gets knocked, I still think that they have the best economy seats on 747 & A380 (best lumber support on a plane seat ever) that I've been in.