I see very little difference in the two services in regards to PQ on large screen RPTV's. I had both side by side at my home for a month before I took the D* setup to my lake house. My set is professionally calibrated and it was virtually impossible to tell the difference in PQ from either. I've done blind tests with my neighbor, wife and other friends and nobody can tell the difference between them even when they said they could. They where mistaken constantly when saying D* looked best when they were actually looking at E* and vice-versa.
I'm a customer of both but if I had to make a decision on one or the other, I would choose D* right now because of the company, the hardware and the direction its heading. It wouldnt have anything to do with PQ because there is very little difference in properly calibrated equipment. A good example of this is my neighbor, who just got the 811 deal as a new subscriber to E*. He couldnt believe the difference in PQ on comparable large screen RPTV's. His picture looked like a$$ compared to mine. I took my avia disk over to his house saturday night and even though we arent professionals, after the calibration his PQ improved 10 fold and almost as good as my professionally calibrated set.