A380 has older seats and IFE, but buddy dining and a much more spacious cabin which is more pleasant IMO. They feel perfectly private to me. The seats also feel bigger to me - larger storage space I think. And use the upstairs loos for the extra space and to stretch legs. And galley is more separated so quieter.

Otherwise 77W or 787 all broadly similar IMO. Better air on 787 I assume. Doors are nice but don't make my trip any better, except a cheeky PJ change. But they really messed up the loos on a number of them. I can't quite recall which F cabin has a decent sized one and which are tiny - I think the 777 refurbs have the tiny single loo.