I haven't had wow so no comment.
My friend has at&t uverse and says he gets very fast speeds but he doesn't have cable tv with them.
I had time warner turbo in my last house off high street. Shit was faster then uverse and I didn't have an outage for over 1.5 years I lived there. I am not counting power outages. Cable tv was fine no issues at all.
I have insight road runner and I had some issues a year ago. They needed to install new wires from my house to the pole but they didn't know that first off. They came out like 5 times while the cable modem was working randomly. Cable tv was not working right either. I bitched enough and they gave me new wire, no bill when service was random, and I got a direct number to one of the managers. Everytime afterwards I had a problem I called him and at 9am someone was outside my house looking at my line. When it works I have no issues. It is fast for downloads but RR turbo is better. HD tv is great but the DVR box is slow. Sometimes lag is 10-20 seconds between button pressing.
I had time warner cable in gahanna when I live there. It went down once that I know of for more then 3 years. The power went out more in gahanna then anything else. It was faster then insight I have right now.