If you are interested I have a paper based on a survey that was done in 1991 on our A320 fleet. At the time my airline was trying to decide on future fleet orders and was considering A330, B777 and MD11 as options. None of the senior flight ops management had flown the 320 and they wanted to know whether they should make a master change requirement for moving thrust levers if we went for the A330.
Based on a survey of all the pilots on the fleet, the conclusion we came to was that there were advantages and disadvantages to both Boeing and Airbus approaches and an ideal autothrust system would combine the best of both. "....a design similar to the A320 but modified to incorporate thrust lever feedback between the idle and climb power positions, and the ability to modify the autothrottle output temporarily without disconnecting the system."
This was the basis of a paper for the SAE. I can send it if you want it.