I've had both...ATT is superior in everyway, except one. That one being that if you have multiple televisions you may block yourself out. I have 3 HD televisions, and can only use 2 in HD, the other must be in standard. The internet is solid. I don't have the phone option...house phones are lame. All in all, it may be a bit more expensive, but I have never been happier with a "cable" provider. Also TW does not support HDMI...ATT does. Again superior in every way, so long as you arent a crazy like me and have multiple HD tvs.