So I got the W1070 in yesterday. If this is the "lesser" of the two and I'm as impressed as I was, I should be floored by the AE7000 or Epson 5010. The only real complaint I had with the BenQ was in really dark scenes (some parts of the new Star Trek & Thor, specifically) it seemed there was a loss of detail.
If I'm being nitpicky I also noticed an occasional rainbow effect when my eyes moved quickly and the motion wasn't always smooth when the camera panned.
In any case, my wife and I agree on a 120" screen.