Depending on what route you're flying (day/night), be aware that 11A (and 11K) are next to the new lounge space and it can get a little noisy depending on what sort of crowd is on board (guilty as charged on my last trip traveling with friends - but it was a day flight QF1 SYD-SIN).
But I'd probably select 11A over 11K (there's more lounge seating on the starboard side). and 16A/K