OK, we've beaten Star Wars to death, let's look at some Hi-Def images, again Optoma H78DC3 home theater projector on the left, and the BenQ PE7700 on the right. On individual shots (not side by sides), the Optoma H78DC3 projector is always first.
The primary differences on the image above and below, relate to contrast. The Optoma H78DC3 on the left looks a bit better. Overall, the Optoma does a better job on "sunny" shots, that is the BenQ PE7700 while overall, excellent for the price, never really gives you a "bright sunny day" look, rather, sunny days appear more hazy.