Its been an interesting read this thread and some good discussion. I'm on my 3rd JVC right now and currently running the X90 and I'll take this moment to get out my JVC fanboy flag and wave it nice and high as it produces the best image I've had in my home cinema yet and it continues to make my jaw hit the floor on a regular basis
I've also had 2 Sony's and 5 DLP's from various manufacturers but the JVC is the winner in my room (its pretty well blacked out with a neutral 1.0 white screen) But then again, its the most recent and most expensive projector I've had so it should be pretty good.
I did however have an Optoma HD87 DLP and a JVC HD750 (RS20?) side by side a couple of years back and I picked the Optoma as I preferred it at the time. My room wasn't as black, my screen wasn't as big so maybe I couldn't notice the contrast and pixel fill advantage of the JVC at that time. I certainly preferred the motion and crispness of the DLP and sometimes the DLP just looked so much more 'alive' than the JVC did.
In reality, I'm not really a JVC fanboy - I actually really like Sony projectors for their overall 'jack of all trades master of none image' (exception to the VW1000 which I've never seen) The Sony's are extremely well balanced for everything and there is a very good chance my next projector will be Sony. The next releases from Sony excite me - can't wait to see what they will have on offer for us.
I'm also very interested in the Optoma HD91. If they can pull off single chip DLP LED at a reasonable cost then this could be a force to be reckoned with. I love the DLP image too (and I've had 5 of them which shows how much I like DLP) ok, so maybe lacking in contrast compared to JVC in my darkened room but they can make up for that in spades in other areas of image quality. On our shores, the Sim 2 150 LED machine is £20k on our shores so if Optoma pull out something at 75% less for cost it could be a mouthwatering proposition. Ok, it won't have the same chip, lens, processing or whatever but even if the Optoma can only stand tall enough to kiss the Sim 2's butt (it might even need to stand on its tip-toes) it should still be a force to be reckoned with.
Thankfully the theme of the thread has gathered towards there not being a right or wrong answer, this brand versus the brand or this tech versus this tech. I couldn't agree more. Having lived with numerous projectors, I see good in all the brands and all the techs and base my overall choice on what I like with my eyes for my room and my preferences at that particular time and in the end, thats how most of us make our choice.
One thing which has already been mentioned and that we can all agree on unanimously is that as time goes on - the choices just keep getting better and better and cheaper and cheaper. We've never had it so good!