I cannot see LCD/LED overcoming PDP from an OVERALL PQ standpoint anytime soon, and perhaps even more likely: ever.
Yes LCD/LEDs get brighter for the worst (ambiently-lit) rooms around. Most PDPs however are fine to superb right out of the box and even better after the implementation of a modicum of common sense regarding placement and window treatments (if necessary).
But even that edge for LCD/LED is hardly a win/win.
Significant LCD hurdles:
1. Still largely abysmal off-axis...a big issue for MOST modern living rooms.
2. Still largely hokey (at best) motion handling.
3. Still inferior blacks or those just approaching PDP levels.
4. Still mura and flashlighting going on with many, many, sets.
5. Now with many LED sets, we get blooming and halos. great.
Buzzes a bit, some more than others. 99 times out 100 not an issue during typical use at typical distances
Phosphor Trailing: for the % that see them at normal distances, it is an issue. What that % IS, is a debate I simply no longer engage in.
Glossy/more reflective panels. Reality is, with more and more LCDs coming out with the same/nearly identical glossy surfaces, I suppose we're finding out that it really ISN'T an issue in the majority of applications. Just as I've maintained for years.
Significant pluses and minuses: PDP continues to win by a healthy margin.
Meanwhile, LCD, which has made considerable strides over the last half-decade, is still nowhere near poised to take the OVERALL picture crown anytime soon.
BTW: the "pixel-level" comment about PDPs already made and reiterated is a brilliant one.
Really, it's that very fact alone that represents the seed that's responsible for nearly the entire PQ division between the two technologies.
Put most simply: PDP, at its core, is an inherently superior technology to LCD when it comes to displaying moving, color, images.
Actual phone call (see pic to left):
Tech (responding to laughter): "I'm sorry sir, did I miss something?"
Me: "Yeah, a case of Diet Mountain Dew walking across my living room."