Mrs Uffers and I are travelling DXB - AKL (17 hours!) in business class in late December. It was originally a T7, but thankfully it has been changed to a 388.
We travelled with QR DOH - MEL in a T7 a couple of years ago, but that was in a 2-2-2 configuration so not too cramped. EK fly theirs in a 2-3-2 so it looks on videos very cramped and I must admit I wasn't looking forward to the trip.
We've flown in a QR 388 in business and
I like the idea of the bar area as you can walk around and chat to fellow travelers and bar staff. In a T7, the only option is to walk through economy, tripping over feet or banging heads or to loiter by the toilets, or the galley area were the FA's are having a break/meal. All not ideal on a long haul flight so an A-380 works for me.