C.O.
I have no experience with AT&T UVerse. We have Comcast/Xfinity. We tried Verizon FiOS several years ago - for less than 30 days. We switched back to Comcast.
We had a contractor cut our cable line on Christmas Eve. Comcast had someone out here to repair THAT DAY.
We've NEVER had a problem with Comast Customer Service - everyone speaks clear English and has been helpful....
Verizon tried to lure us back last week - I called Comcast - they bumped up our speed and gave me a credit on our bill for six months....can't complain about that!!!
So I would stick with Comcast!
Good luck!