I don't like Plasmas due to their short life span... I have a 61" Panasonic Lifi HDTV 1080p... It's a rear projection DLP, but unlike most rear projection TV's, I won't have to replace the bulb after 5000 hours of viewing...[quote/]
you should read your xbox manual. all video games reak havoc on projection TV's over time. My grandma has a 92' rear projection and it looks like sh!t now (she has had it for many years though) LCD has the longest lifespan. although i havent heard anything about the lifespan of a LED
DLP RPTV's do not run the risk of Burn In, Your grandma's 92' was probably a CRT RPTV.
I don't think Burn In is much of an issue with todays TV's, Plasma's had big issues with this but now not so much, you would really have to work hard to get something to Burn-In.
For the most part the absolute best picture quality you will get will be from a OLED and/or Plasma, and this is mostly due to the ability for each pixel to be turned on or off, good deep blacks.
LCD/LED is the same thing just a different way of lighting LCD's use something called a Cathode Flourescent Light (or maybe Lamp, can't remember), the LED uses little LED elements (all white) for the backlight, its missleading and they probably used the LED name to try to jump on the OLED bandwagon and confuse those of us buying the thing. OLED and LED are very different.
As far as picture quality goes its a personal thing, Myself I am compeltely happy with the quality of a 1080p DLP TV for Movies and Games. I have seen the picture on OLED TV"s and it is stunning maybe the best (movies and Games), same goes for Plasma. The new 120 Hz and 240 Hz LCD TV's is very nice as well and maybe only trails all the others slightly IMO.
DLP - cheap - Great Picture - but you got to have the space.