Great picture quality, to me, is a picture that has an amazing "wow" factor to it...as in a very sharp 3-dimensional picture, with really vivid colors, great contrast, very good blacks, and with as little noise as possible. I hate noise, as it seems to really bother me! To put it in simple terms, i want a picture that seems to jump right off the screen at me...to really "pop" and give it that "wow" factor!
Hm. Noise and pop are not mutually exclusive. Noise will come from the source. Blame the source material, not your larger screen for showing whatever its told to.
I haven't really thought too much about screen size, yet. If i were to go with a projector, i'd probably be thinking anywhere from 90" up to 120". If i go with a flat-panel, i'd go with the largest size that can give me the best picture quality i'm looking for, while staying within my $2,500 budget.
Say you placed yourself 38% room length for acoustic reasons. Say this 38% was from the back wall. At the distance to screen, THX's rec of 36 degrees would be hit at about 116"+. After I played for a week, I found myself going with 42 degrees from front row. Then there are those with CIH going with over 50 degrees. That would be over 170" in the described setup here. Granted, a 2.40:1 AR, but you get my point. How much do you think a 170" 1080p flat panel would cost?
Has anyone done side-by-side comparisons with flat-panel vs projector? Can a projector provide the same "pop" on picture quality alone, or are flat-panels superior in that department?
Not side by side, but every person who has come over would tell you my pic is the greatest they have ever seen. And I would agree.
I think, on paper, plasma/crt MIGHT be "better" in one aspect simply for a deeper black. However, since I've been led to control my light, I think the blacks I have are the best that most anyone has seen. My LCoS tech is not the very best with motion, very similar to LCD, yet still better (LC layer can be reduced by 1/2). DLP will be better with motion, but some may suffer RBE and ... see.... well... you might get that POP you want, like a plasma, but... its also noisier!.... which helps its sharpness.... hmrz...
here's a good read for you:
Do any projectors beat plasma picture quality?
EDIT: regarding noise, you can always apply different types of DNR, including block, mosquito, etc. However, by scrubbing out the noise, you are also scrubbing out detail. Some movies have both noise + amazing detail, some movies have less noise + amazing detail, some have noise and no detail, etc, etc, etc.
However, again, you apply DNR, it will be less noisy... but also less detailed. Matter of balancing your tastes.
Me? I think DNR is the worst thing you can do to hidef.