Planning two longhaul flights (US to Japan) this coming winter for our family.
Our choices are being the 787-10 (United Codeshare) and the 777-300ER (ANA Direct).
Seating Section: Premium Economy

We've flown both airlines to Japan before, but as I've done a deep dive, it seems like people may love the 777 more than the 787-10 when it comes to premium economy.

Is that an accurate assessment?

Here's why I ask:

The cost to fly the 777 BOTH ways is about $200 more per person (in contrast to the 787 on the way out and the 777 on the way home).

Any thoughts/advise would be appreciated!