If you have taken a close look at the enlarged versions of the images above, you can appreciate the rather dramatic difference between the HD700 and the Epson, with the Epson's black being far darker. In the Panasonic PT-AE4000 comparison, again, a big difference, just not quite as much. Moving to the low cost Mitsubishi HC3800, even that does slightly blacker blacks than the Cinetron projector.
These two all digital images images are good ones for considering black levels and dark shadow detail. Look for the richness in the black part of some of the buildings and, also, the sky, in the second image. Both of these first two, are digital hi-def images from the DVE-HD calibration disc.