Difference in Flat Screen Tv's?

1. What is the difference in an LCD and a Plasma?

2. What is the new difference in an LCD and an LED TV?

Which are considered better TV's and the best out there?

Suggestion:

Pros of Plasma
- Better contrast ratio, better motion tracking, better ability to render deep blacks, they are available in larger size.

Cons of Plasma
- more susceptible to burn-in but has been solved at some extend with the new TV
- more heat and power consuption
- heavier weight

For Plasmas I recommend you these: Panasonic or Samsung

http://www.amazon.com/s?ie=UTF8&redirect=true&ref_=sr_nr_p_n_feature_three_br_1&bbn=979929011&qid=1257710394&rnid=724226011&rh=n%3A172282%2Cn%3A!493964%2Cn%3A1266092011%2Cn%3A172659%2Cn%3A979929011%2Cp_n_feature_three_browse-bin%3A724228011

Pros of LCD
- no burn-in
- cooler running
- more functional at high altitudes
- longer display life
- less power consumption than Plasma.

Cons of LCD
- Lower contrast ratio
- rendering deep blacks compare to Plasma are not so good
- not good at tracking motion but still trying 120Hz or 240Hz refresh rates

For LCDs i recommend you these: Samsung or LG
http://www.amazon.com/s?ie=UTF8&node=724227011%2C979929011&ref_=ce_500_ftlc1