Since I have no good things to say about Comcast/ATT, I refuse to say anything about that rotten, thieving company that will never get any more of my business. On the other hand I have many good things to say about RCN. Fast, not bound to specific MAC address, great uptime, IP addresses don't change very often... Grass is much greener on the RCN side of the fence. At least from my vantage point.
I have Comcast (AT&T Broadband) in southern NH and have nothing but good things to say about them. In the 3 years I had them, I think I can count the number of outages on 1 hand and they were always very brief.
I've heard nothing but overwhelming complaints about Comcast. I have had email contact with dozens of municipalities who use Comcast for Internet service. Things like "weeks without service" is a common theme. I can't remember hearing anything good about them.
- Rob