Assuming 2 pax? You haven't mentioned your priorities, if it is sleep, connectivity, food quality, on board service, ground service, connection time (or what the connection time of those options is).
Given you can upgrade one leg to F I'd go with EK,though no doubt the new 788 J in QR would be superior to EK 77W J in hard product. The angle on the seat in EK 77W J is noticeable but not significant.
EDIT: Also if 2 pax 2-3-2 in EK 77W not a major issue in J as you can have the window seats and I'm sure your companion would understand the stepping over each other.