According to Consumer Reports Mag:
Why to buy a Plasma, and why to buy an LCD
Why buy a plasma TV?
To get more screen for your money. Inch for inch, plasma offers more bang for the buck than an LCD TV, so the same budget can buy you a bigger screen. Most of the 50-inch plasma sets we recommend cost $1,500 to $2,000. The 47-inch LCD Quick Picks cost $2,300 to $2,600, and the 52-inch sets cost $3,800 to $4,000. (Prices were current at press time but might drop this fall.)
To enjoy a movie-theater experience. A good plasma TV's deep black levels and high contrast can do justice to almost anything you watch, including movies and TV programs with dark scenes. The strong contrast and realistic, accurate colors can result in rich, natural-looking images, especially in dim lighting. Most LCD sets have trouble displaying the same strong, dark blacks as plasma sets. On certain LCD sets, uneven brightness from the backlight can create cloudy areas that can be distracting in dark scenes.
For a wide viewing angle. With a plasma TV, as with the familiar picture-tube set, the images onscreen look the same from almost any angle. That's a big plus if a TV will be watched by a number of people sitting around a room.
It's a different story with LCD TVs. (See Why buy an LCD TV?) Though some newer models have gotten better, most LCDs still look their best only from a limited sweet spot in front of the screen. As you move off to the side, the picture quality deteriorates, appearing increasingly washed out or dim. Vertical position also matters--say, if you're sitting on the floor or watching an LCD set that's mounted above a mantelpiece.
On some TV sets, those problems can be obvious, especially with indoor scenes and flesh tones. The degradation is less noticeable with bright images and vivid colors such as those you'd see in a football game. Because TVs in retail showrooms often display sporting events, you might not notice a problem with viewing angle when looking at a TV in a store. Picture settings also minimize the effect of viewing angle on picture quality. TVs are usually set to vivid or dynamic mode, which pumps up brightness and color to a level that looks great under fluorescent lights but unnatural in a typical home. Ask a salesperson to reset a TV to normal or standard mode and tune in nonsports programming to get a better idea of how a TV might look at home, especially from an angle.
Why buy an LCD TV?
You have a very bright room. LCDs are generally brighter than plasma TVs, and their screens are less reflective. That makes them better for daytime viewing in rooms with lots of windows or for night-time use in rooms with bright lighting. Some plasma TVs can look a bit dim in bright lighting when set to the normal or standard mode, which we generally recommend for home use. You can switch to the vivid mode or raise the brightness control to compensate, but the picture quality might suffer. Another issue with most plasmas is that the glass screens are subject to reflections and glare. If you have the lights on while watching dark scenes, you might see mirrorlike reflections on a plasma set.
For heavy use with video games or as a PC monitor. Both types of flat panels can do the job, but with an LCD, there's no chance static images will burn in. With a plasma TV, burn-in is a concern with video games, computer programs, and TV programming that has fixed images onscreen for a long time. That includes station logos, news tickers, even the bars alongside standard-def pictures. Many plasma sets have screen-saver features to minimize risk, but burn-in is still possible.
With either an LCD or plasma TV, consider a screen with 1080p resolution for use with a computer. The higher resolution will let you see more content onscreen with greater clarity and finer detail than on a 720p set. (You might have to connect your computer to the TV via an HDMI input to get 1080p resolution and to avoid having outer edges of the image cut off, otherwise known as overscan.)
For somewhat lower electric bills. LCDs tend to use less power than comparably sized plasma TVs. It doesn't appear that the differences would affect your electric bills by more than a few dollars a month in many cases, so that might not be a major factor in your decision. But there is obviously an environmental advantage to using a less power-hungry TV.http://www.consumerreports.org/cro/e...-tvs-0v2_1.htm