Windows 7: att uvers or comcast

any one know if att internet over fiber optics is better than comcast cable

By definition; fiber optics, theoretically speaking is supposed to be up to 10 times faster than cable. It is also very pricey and only in limited areas of the country (USA)...it's not mainstream yet.

Right now i get comcast cable i pay for 12meg down and 3 up but on speedtest i get 22down and 5 up att i would be paying for 18,meg for just 4 bucks more,

I have the AT&T Uverse fiber optic thingy. I have my phone and the internet in a package. I believe the internet is about $42 which is not too bad. I wouldn't say it is super fast, but is good. == I was talking to AT&T about something else and they always try to sell you something. At the time I just had DSL. They told me they would give me the Uverse with free installation and it was $5 a month cheaper. Two installation guys came to my house, spent four hours on the free installation and I ended up paying them $5 a month less. It just makes me wonder how they can make any money that way.

do you get the 12meg or 18meg

Right. If it's not talking speeds in this range
Verizon doubles FiOS speeds to 300Mbps, thumb-twiddling waits are officially over -- Engadget

then it's probably just some jazz that mentions "fiber optic" because something in the backbone or network is on fiber. If it's real FIOS you should get download speeds that blow everything else away.

Comcast is faster. And as you mention, they give you extra speed. I started at 6megs, and still pay the same. I average 22 Megs up and 4+ down. A Guy

I have the AT&T Elite which is 6 mbps. Here is the link to it.
AT&T U-verse High Speed Internet Plans

Right...good point.