i have a pioneer 42". i am extremely happy with it, and considering how low the price i got it for, i feel that it was one of the best consumer electronics purchases i have made.

however, i don't feel that it is all that much different in quality from Panasonic, Sony or (surprise) LG...i demo'd them all and they are pretty much equal in my eyes except that i got the Pio much cheaper and it has more features than the Panny