Answer:
LCD
Good: Bright Pic, No Glare
Bad: Some look dull at night, (dark's look greyish)
Starting Cost: 32" @ 330, 40"@550, 52"@900
Plasma
Good: Best all around pic, Smooth motion for fast movement
Bad: Some glare, but better then it use to be
Starting Cost: 42"@550, 50"@700
LED: (These are LED Back lite, screens are still LCD's)
Same Good/Bad as LCD, however the color is more vibrant, most LED/LCD are less that 2" deep.
Cost: 40"@1300, 46"@1600, 55"@2200
Dont let anyone tell you the myth's on plasma, they are the best. They dont need to be "recharged" as there is no such thing. And the burn in issue people talk about with plasma is no longer a buying factor. If you leave an image on ANY screen for a long enough time it will burn in. Just look at your local ATM machine.
{ 4 comments… read them below or add one }
LED means it is backlit by LEDs so the TV can be thinner
LCD is a liquid, crystal display
Plasma is many tiny cells between just two panels of glass hold a mixture of noble gases. The gas in the cells is electrically turned into a plasma which emits ultraviolet light which then excites phosphors to emit visible light. Plasma displays should not be confused with LCDs, another lightweight flatscreen display using different technology.
I think LED is the best because it is thinner and brighter
Plasma TV facts
http://en.wikipedia.org/wiki/Plasma_TV
http://www.youtube.com/results?search_query=plasma+tv+vs+lcd+tv&search_type=&aq=3&oq=plasma+tv+
http://www.educypedia.be/electronics/plasmadisplay.htm
Liquid Crystal Display facts
http://repairfaq.ece.drexel.edu/sam/tvfaq.htm
http://www.youtube.com/results?search_query=lcd+tv+review&search_type=&aq=1&oq=lcd+tv+
http://en.wikipedia.org/wiki/Liquid_crystal_display
led tv facts
http://en.wikipedia.org/wiki/LED_TV
You can check this article:
http://indiahometips.com/plasma-vs-lcd-vs-dlp-vs-oled.html
You can find difference in LCD TV, LED TV and PLASMA TV information from here: http://astore.amazon.co.uk/cheap.lcd.tv-21