I'm with you on Comcast.. the worst company ever. I have a hatred for them that I'll take to the grave. I will never, ever, use Comcast again. In fact, when those xfinity guys at the mall ask me if I want service, I give them an ear full, then they lie and tell me they're not part of Comcast. My wife has to drag me away because she knows I'll pick a fight with them.
When I moved the only option for internet in my area was Comcast so I gave tv/internet a try. In short, after one month they couldn't get tv to work, sent 6 different techs which were contractors, never gave me new equipment which they promised they would, charged me installation and 1 month of service for a service I never had, had to call a corporate number I found online and talk to an executive to get the bill dropped and service cancelled. I kept the internet because I had no choice, but the executive locked my cost at $30 a month, and on the first day AT&T internet was available I cancelled with a smile on my face. Not to mention that the two years I had the internet were wrought with problems; I would lose connection everyday about 2pm, and every time my neighbor had issues, they would cut my line to boost their signal.
While I was still fighting to get my Comcast bill dropped, I had Dish Network installed. The (real) technician had all 4 rooms running within an hour. I even told the exec from Comcrap that they've had a month to get this to work and there is a wire coming from the ground, and Dish puts a thing on the back of my house and points it into outer space and I get tv! Man I was pissed...
As far as AT&T/Uverse goes, their customer service is ok. Once in a while I'll call them to get a promotional price on something to keep the bill down. My only complaint is that they farm out some of their calls to India, and not that I don't like "Mike" from Bangladesh, they don't seem to have the same authority as customer service in the states. The internet seems pretty stable and consistent. They ran fiber to the node that services my block and I can get the fastest speeds now. The tv service is ok, but lacks some features that Dish offered. I am pleased overall.