Correct me if I’m wrong, but if my memory serves me right, the Qsuite A350s (and the regular ones) do have air nozzles.

I’d say the A350s are quieter and have a more airy feeling (no overhead bins in the centre), and has the gimmick of electronic blinds, but have the disadvantage of smaller toilets (esp compared to that one huge lavatory on the 77W). Seat also felt narrower for some reasons.

777 has a wider cabin, so felt more spacious, and has larger lavatories (at least the one by 2L). Despite everything, I lowkey prefer the 777s due to the larger lavatory (the A350 ones are awful to change into pyjamas in).