I would first of all recommend you to wait a bit, as BenQ has announced at CES 2011 of 3 new projectors to arrive as early as March:http://www.pcmag.com/article2/0,2817,2375269,00.asp
That's if you're still considering the W6000. Of course the W6000 will still be a superior projector; however, it may be interesting to see what the new W1100 and W1200 offers. It may be wishful, but what if the specs seem to somehow converge up to the W6000 standards, while keeping it in the 1.5k range. I would definitely want to see a comparison with the new W1100, W1200, and W6000 to see the difference in performance and to see how far the gap is. I wonder if BenQ will release a new model for the W6000....
Either way, you can't go wrong with the W6000, it is a very refined unit, and will offer lots of pop and wow for you and your viewers. It has definitely enough reviews and happy owners out there to testify in its name. I have yet to meet an unsatisfied W6000 users. Unless they are dealing with RBE effects which are rare with the W6000 due to its 4x color wheel speed. Even those rare individuals who complained about RBE, did note that if it wasn't for RBE they would have the W6000 for themselves because the lumen output is amazing, and the blacks and depth of contrast gives breathtaking production.
I wouldn't recommend the HW10, if anything go for the HW15, but for that price you might as well get the W6000, since they are pretty similar.
Here is a comparison on the HW15 and the W6000:http://www.projectorreviews.com/benq...petitors.php#7
"Bottom line - no contest in brightness, even though, as a pure movie watching projector the Sony's 500+ lumens are pretty good and will work for most.
The overall image of the BenQ W6000 is more dynamic looking than the the Sony. Let me put it this way, the Sony seems "reserved" the BenQ, is more pop and wow. The BenQ is, though, a little less perfect (ie. their dynamic iris isn't as smooth as the Sony).
I do believe I had that same philosophical difference between the W5000 and the HW10 last year. My own preference is for the BenQ W6000, but overall, these are roughly comparable as competitors, different, but both of very good quality.