[quote name='Malik112099']suppaman - burn in is still a problem for both plasmas and lcds..look it up..it isnt permanent anymore but it can still happen....[/quote]
No it isn't. And if you dare post burn-in is an issue for LCD's at the AVSForums you'd better get yourself a new asshole because they'd rip your's apart.
LCD's can't get burn-in, which a few years ago was a great advantage they had over Plasma screens (though it at the time was also negated because LCD's lagged with the onscreen picture, and still do technically compared to plasma's though it's not to noticeable anymore if you have 120HZ refresh sets with 8ms or less response time).
Technically plasma could get burn-in, but all new tv's from Panny, Pioneer, Sammy, etc all have built-in precautions, such as pixel wobbling, which slightly shifts each pixel so the image itself never sits still on the screen (though to the human eye you can't notice it doing this). Most also have built-in remedies, such as the Sammy's, which will throw a white screen up to remove an IR (image retention).
And there's the word you are looking for image retention. LCD's can suffer from it, but it goes away on it's own without having to even do anything. Plasma's greatest susceptibility to image retention is in the first 100 hours of viewing (which is why if you check diehard places like the AVSForums they link and talk about the break-in DVD, which is available free in a download to easily break-in a plasma the best way possible).
As it stands right now, for flat panels, plasma's offer the best picture for the best price. The only issue with it is if you have a very brightly lit room or a lot of windows that could create reflections from glare off the glass screen (though new models have anti-glare coatings). Sadly even LCD's are shifting in this direction, at least Samsung's, as the 61/65F series, and the new 71/81 series all feature a shiny as shit screen (thus negating an LCD advantage).
RPTV's, such as DLP still have the best value for screen size, but are still bulky, will require eventually expensive bulb replacements (which may be a pain in the ass to find in a few years as the industry continues to shift to flat panels (LCD, Plasma, OLED, etc), are still known to be susceptible to gaming lag and picture wise (for the best RPTV's, which hands down is the Sony SXRD series of RPTV's) are basically the same as the top Plasma's from Pioneer.
If you want info on tv's, hands-on reviews, etc, just check the AVSForums or Cnet for TV reviews. They put things through their paces, and generally LCD's (minus the very top ones) don't fare to well still, and definitely don't fare as well as Plasma's for picture quality in flat panels.