I am a Comcast customer and could not be more torn. They are not the cheapest, but their content is the best (with this huge exception), and I have literally lowered my monthly bill the last two contracts while getting more channels and faster internet. Their interface only gets better and better. Fully integrated Netflix, Amazon, Youtube, etc.
That said, their customer service isn’t great and they are holding out on ACCN. I am going to the game tomorrow, so no worries there. I assume they will eventually deal, but I may consider switching at some point. Maybe it is just fear of the unknown? Right now, aside from ACCN, there is literally no content I am missing out on.