My Parents switched from Comcast to Uverse (they use a 60" plasma display).
All I can say is from a 12 foot distance, the picture on various HD feeds look a little bit softer than Comcast. My parents cant tell the difference; even when they wear their glasses. However, it's pretty clear to me.... ven from 12 feet away. Comcast can look pretty decent as long as there's no fast movement; or, you're see the Comcast block artifacts.
My parent decided to go for Uverse because, at the time, they thought they got a better deal/bundle and gave up on comcast trying to fix their on going issue with pixielixation/freezing of picture/sound after multiple tech visits.
I guess it depends how picky you are. There's definitely a difference; but, not a night and day difference. In most cases, comcast looks clearer to me on the same plasma TV. However, there are some comcast feeds which are so bad, they're unwatchable... and just end up ordering the blu-ray if possible... or go across the street to my brother's house who has direcTV for sports (which can't be compared to comcast or Uverse.)
That's just my first-hand experience.. Maybe other's have a different experience.
Originally Posted by Xn0r
I got mine from a guy who moved to Japan.
BTW, I've heard rumors that the quality of HD on U-verse isn't very good. Low bit rates or something. Can anyone who has first hand experience with it confirm or deny?