Click to enlarge. SO close
Both the VW70 and the Pro version of the Epson support an anamorphic lens, while the 6500UB does not. The Epson projectors have more zoom range (2.1:1) than the Sony's 1.6:1, and more lens shift range as well. The two Epson's have the best placement flexibility around, while the Sony's not bad at all.
Image quality: In terms of color accuracy, the Sony will deliver a slightly more natural looking image. I've always liked the Epson's but their skin tones are just not quite as natural as a number of other commercials, although it's still very good.
The Sony also delivers a bit better dark shadow detail, not a particular strength of the Epson projectors.
That brings us to black level performance. For the price, the Epson is the best thing around, but the Sony, though far more expensive will best the Epson by a bit in terms of black levels. I'm not sure if the Epson's are compressing dark images as much as the Sony, (I don't think so), which may be what's helping Sony do slightly darker blacks. The Epson are excellent, the Sony a touch better.