Since all HDTVs are 1.78:1 I will take that as what I want to see. I will always choose the native aspect that the film was shot in, except for 1.85:1 which I am happy to take a bit of overscan on to allow it to fill my 1.78:1 screen.
All HD is shot 1.78:1, all HD shows are 1.78:1. Give me 1.78:1 for more movies and I will be thrilled with that! No, I don't want a 1.78:1 Lord of the Rings... But, if it had been shot that way to begin with, I would gladly accept it.