Hm, I'm not sure if it's worth entering this discussion. Much of this PDP vs LCD 'information' is completely wrong.
1. Sharpness should be set to the neutral position (typically 0) on all displays; LCD, PDP, CRT and others. The sharpness setting controls the amount of digital sharpness processing added to the image, it should always be disabled.
LCDs are not overly sharp, they display the source as-is.
2. Noticing the grain/noise more with LCD. Actually, this is the opposite of reality. LCD will display the source as-is. If there is grain in the source, there will be grain on the screen. If there isn't any, there's none on the screen either.
Plasmas on the other-hand, especially Pioneer's sets, have to use considerable amounts of dithering to make up for their lack of precision. (they are not even close to 8-bit native displays) With Pioneer plasmas there is always noise in the image, even if there was none in the source.
3. Most LCDs sold now are capable of accurate colour reproduction, it's just that they are also capable displaying image in a wide gamut mode that oversaturates everythingthe way they are typically set up 'out of the box' and in stores. With most, putting them into the 'cinema' mode will usually sort this.
4. LCDs are capable of going much brighter than PDP or CRT. This is what makes them much better suited for viewing in brighter rooms/daylight than either technology.
They can also be set to lower brightness levels better suited for watching in a darkened room as well.
The big difference is that LCD is capable of maintaining its brightness regardless of the image being displayed onscreen. With Plasma, brightness can drop as much as 80% when comparing an image with a small area of brightness to an image where most of the screen is bright. CRT also does this but a good CRT would be less than 10% between a mostly dark and mostly bright image.
I have not found it possible to set PDP to a comfortable brightness for watching in the dark as a result of this. Either scenes where there are only small areas of brightness are displayed too brightly, or if set to display them correctly, scenes where most of the screen is bright are then too dim. With LCD the brightness level stays where I set it.
5. Motion blur, black level are basically a non-issue on high end LCDs.
6. Viewing angle is better on PDP, you will have no arguments from me there. It's usually not a major problem on LCDs now though, as long as you're not watching at an angle in the dark.
There is no 'best' display technology though. LCD, CRT, PDP and others all have various compromises. What might suit one person might not suit another. OLED might finally be something that is objectively better than all other current display technologies, but we won't know that until it's available in large sizes at affordable prices.
Personally, I prefer the flicker-free, noise-free image you get from LCDs to PDP. I find motion handling to be better on my 480Hz LCD than any plasma I've owned, mainly due to the lack of phospor lag, but also the judder reduction that 480Hz brings. I no longer have to worry about image retention/burn-in when playing games (something a friend of mine has had problems with on his Panasonic G20 since GT5 was released) and can use it as a PC monitor without worry. There is almost no noise from the panel itself (all PDPs I've owned buzzed loudly) it runs cool (the PDPs could have been used as a radiator in my small room) and is very energy efficient. (60W with a full 50% grey screen)
Other people prefer plasma. There are no viewing angle issues, and it's much cheaper. Some prefer the look of it as well. (though I'm convinced most that say that, haven't seen a properly set up high-end LCD)
Sure, I say this as a recent LCD owner though, so I'm obviously 'biased' and you will probably disregard my opinion. I've also owned a Pioneer KRP500M and had several other plasmas in my home, all of which I got rid of. (and went back to CRT until my 46HX903) As much as I like this screen, I can see that it wouldn't be for everyone, but it's the first flat panel I've owned that seems good enough for me to keep, and replace my CRTs.