Hi,

The hard product on the 777s is pretty good/great depending on the seats you choose, while the 767 is dated but is great for sleeping because of the lack of a footwell. The soft product is kinda different though, everything (bedding/amenity kit/slippers) is good except for the food which is slightly below average in the presentation/service as it comes all in a tray and the food is usually cooked weirdly but tastes ok. Good luck on your trip