I thought the 757, the 767, AND the 777 were all fly-by-wire. Meaning electrical servos run the hydraulic actuators of the flight control surfaces rather than cables from the pilot's controls.
I have ultimate quantities more trust in a well-trained pilot than some silly computer that can and does hiccup for no known reason.
I think it is all semantics. "Fly-by-wire" is often considered an Airbus differentiator, while Boeing calls it "Actualization by wire".
I think most people would rather leave the ultimate control up to a trained pilot because we know how easily computer electronics can fail.