Pioneer's are the best, period. Awesome TV you have there.
Actually the Samsung 120Hz LCD and new 240Hz LED LCD televisions are the best available...the new LED models are supposed to be better than the older models but that is a matter of perception....and you're going to pay a price for them. The LED DLP televisions are great if you have a large room with low light and a way to block sunlight...otherwise they do wash out a bit. The second gen technology in LED DLP's is putting them near first generation LCD picture quality.
Don't go by the pictures you see in the stores either, unless you take the time to adjust the settings to get an accurate comparison. Of course if a salesperson wants the sale, he/she will help you out. Also some of your video quality will depend on what you have hooked up to it. A blu-ray player will give you the best video...HD cable/satellite is a close second.
If you're going over 42 inches you want the 120Hz (min) and 1080p HD capacity. The smaller screens don't show that much difference in video quality, even with blu-ray.
I'd recommend you go to a store with a large selection of televisions and do a side by side comparison...that's the only way to make an informed decision.
As far as overall specs...Pioneer did/does make one of the best plasma televisions...Samsung makes one of the best LCD televisions...Toshiba and Sony make some of the best LED DLP televisions. Stay away from Sharp, Magnavox, RCA and any off brands...although Vizio does make a great 120Hz LCD television for less money than a comparable Samsung. Also be prepared to pay an additional $300 or so for a good televison stand.
I spent 3 months shopping for televisions late last year...no store was safe...and I drove the sales people nuts...
