First if you are looking at clear look at sprint also. They use exactly the same network but sprint offers a true unlimited plan.
Verizon are jerks but Fios is going to be the best you can get.
All the wireless stuff is hit and miss. First make sure you can get a 4G signal inside your house. Just because they show coverage does not mean it will work. 3G has a cap on it even from sprint and is much slower than the 4G.
The speed is ok but not as good as any broadband. Part of the problem is the overhead of sharing the bandwidth on the cell tower. This causes much higher delay in the in packets. It works pretty well for web surfing but online games or streaming video are inconstant. Not sure why sometime it will play high def video without a glitch and then the next time it will stall. It is a radio so all kinds of things can degrade the signal.
It is a great service if you are mobile. Since it is target to a different market it is hard to compare with any broadband.
Can't say on Cox. Like almost every company they have people who like them and people who hate them. I think many people just tolerate verizon since FIOS is so fast and when you get down to it your internet traffic will likely travel over verizon (ie UUNET) no matter who you buy the local service from.
I am trying to reduce my monthly overhead. I have just canceled the Cable portion of our current Verizon Fios plan.
We have 2 home offices and the priority is Internet and the phone for faxes and a few international calls to clients each month.
The people at Verizon were rude when I canceled Cable, and I now want to cancel the rest of it.
What appears to be available in New England (RI) is Verizon Fios, Cox and Clear! Any feedback on Clear or Cox would be great.
I am looking at Clear for wireless internet and phone.
It seems hands down the cheapest. My concern is consistency and reliability.