Completely disagree. You forgot the A350, which appears to be a better plane than the 777x. I also disagree that the A330 neo is inferior to the 787. Its cheaper, more reliable and the fuel burn isn't much different. To say they're "soundly" winning in the widebody market isn't correct, and it also leaves out the fact that the A220/A3XX is outselling the 737 like crazy.
OP was talking about technology though: A330 neo is hardly technologically superior to 787. Even A350 doesn't have some
of the innovations of 787 like not using bleed air
