Plasma v. LCD really has to do with three things: (1) the light environment in which the TV will operate, and (2) the viewing angle, and (3) personal preferance regarding the "look" of the picture.
(1) if you will be doing most of your viewing during the daytime, in a normally lit daytime environment, then LCD with its brighter image, is probably the best choice.
(2) if you need a large viewing angle, due to a large audience or high screen placement, then a plasma is a better choice.
(3) if you like the look of a movie in a theater, then plasma will more closely resemble that. Some feel that LCD gives an un-natural look, although newer LCDs that use LED backlights may give a better picture.
Less significant, but still worth considering is that LCD is more efficient, using perhaps half the electricity of plasma. Also, for the same screen size, plasma tends to be less expensive.
