I agree, even with the 2 short weeks I spent with fios the pq was better then directv, and despite tonys claim I do feel as well directvs HD is not what it was
I think it just depends on your vision and how far away you're sitting from the TV. I had FiOS and DirecTV boxes connected to my 65" 1080p plasma last year, and from my normal 10'-12' away with 20-20 vision, PQ looked about the same. At 8' or less, I could see the difference.
And there wasn't any difference between the NYC OTA signal I receive and FiOS PQ at any distance. That backs up their claims that they simply deliver the signal the networks give them, with no add'l processing that might degrade the picture.