Hi. My name is Harry. I am a broken record...
IF - you need an all around unit that can be used to play video games, as a computer monitor, will be featured in a brightly lit room, or where it will be directly lit via a window, and runs a little cooler and is generally lighter, then get an LCD. They are superior for everyday, all around use.
IF - You are mainly purchasing the screen primarily to watch movies, and in a dark room (one with no windows that might cause glare on the screen), buy a plasma. They are superior as true home theater screens.
IF you buy an LCD - try to stick with: Samsung, Sharp, Toshiba, Sony, and maybe LG
If you buy plasma - try to stick with: Pioneer, Panasonic, & Samsung
If the screen size is >= 42" go ahead and get a 1080p unit if it is affordable. < 42" 1080p is nice, but really not necessary. Most of these TVs have 1366x768 resolution which is sufficient for the screen size to produce a crisp clear picture.
People argue too much about which is technologically better without considering which is better for their needs.