Your eyes are your best friend when it comes to comparison between the candidates. Each of those models mentioned can be fed different sources with different level of PQ/resolution, which may suggest that a particular model is better highlighted than the other. The best way to resolve this, is to feed it the same source and compare from there.
My hangout/new unofficial workplace

has the Sony KDL40X2000 and Sharp LC-52D62U, both more known as the Sony 40in Bravia X and Sharp Aquos 52in, both capable at 1080p, and both running 1080p trailers from HDMI splitter from a PS3 shown significant differences between the two. Dont believe? Drop by to see it for yourself, the winner is the "S" with lesser alphabet. Coincidentally, when both the 52inch 1080p Samsung and Sharp was paired side-by-side running 1080p source, the "S" with the lesser alphabet in this case, also shows a better PQ, albeit with less differences, compared to the Sony-Sharp case.
Anyway, Mediaplex just got in their brand new Samsung LCd TV today, comes with 3 HDMI inputs. The said model has not even been updated into Samsung Malaysia's webpage, the only match i see is from Samsung US site, the LN-T40XXX minus the HD tuner built in of course. 720p still, but the built quality and the piano finish is suitable for design conscious folks.
The LGs are in one corner running upconverted DVD feed and/or HD content from custom boxes, the Samsungs are up front running HD-DVDs i've supplied them with, while the main showroom showdown is between the Sony KDL40X2000 and Sharp LC-52D62U, a 40incher versus a 52 incher., and the Sony outclasses the Sharp, in my personal view. Both are connected to a PS3 via HDMI splitter, so you can ask showroom execs to put in games/Bluray i left there to see which of the two makes(or breaks) your choice. Ask them to run Motorstorm demo or play Casino Royale Bluray i left there.
Those looking for projectors too are not left out. The Cinema Hall at the back is running a rotation of projectors, from InFocus and Optoma's 720p offerings to the Mitsubishi's LVP-HC5000 right up to Sony Pearl and Ruby (Pearl sold already unfortunately).
Right now they are running the 7 minutes HD footage of Spider-Man 3 from NBC.com, on any screen connected to a PS3. Not really 1080p, the file i got for them is only 720p, couldnt get them the 1080p feed....maybe nonexistant too since the NBC special was streamed and streaming a 1080p off a website would incur the wrath of the bandwidth God.

Simply put, comparison between the said models is the only way to get the real big picture of which model suits your eyes better. And to do that, you need side-by-side comparison. We had tons of debates among ourselves at Mediaplex when we we running the Sharp and Samsung 52inchers side by side, about which model is better. Sharp looks amazing on normal motion pictures involving natural background (sceneries, humans, actual footage captured by cameras), while the Samsung was unbeatable when it comes to computer-generated imageries from Ice Age 2 and Corpse Bride Blurays. In the end, most picked the Samsung out of the price factor (cheaper by a couple of thousands), even though personally i'd picked the Sharp anytime. Things might be different if they throw the Sony Bravia X into the fight though.....
OMG...Sleep! Need to wake early to pick up ticket today! *
This post has been edited by stringfellow: Apr 4 2007, 02:36 AM