Cell service - Which company do you recommend?

From AT&T's website:

http://www.att.com/esupport/article.jsp?sid=KB414532&cv=820&_requestid=1741229#fbid=alUMOgAWshE

I have giffgaff. It runs on the O2 network, and for £10 a month pay-as-you-go, you get 250 minutes, unlimited texts and 1GB of data; for another £2 you get unlimited data. I've been with them for over a year and it's been great.

I'm on GiffGaff as well (as is my husband). The £10 plan is excellent. And, calls between other GG customers are free, so "family" calls don't eat into our minutes.

My husband and I are on O2. He has a plan, I have pay as you go. It's fine for me now because I don't have a job, or friends here so I don't call anyone. I top up £10 a month and get 300 free texts and data.

O2 also has nice perks-like priority moments, an app that allows you to get free stuff and discounts from retailers. I love it, we frequently get free coffee, chocolate, cookies, popcorn at the cinema, discounts at high street stores, and much more.

I have giffgaff also. while i love the price. I have the 15 pound goody bag. Which gives me unlimited data and text and 400 minutes. WHich unlimited data is great because I use skype to call the states. However,  I find myself in "emergency call" status alot. I do not know if it is the phone, or buildings, or what. But I am thinking about chucking it for that reason.


Oh and i saw someone said you can't tether with unlimited I do not think this is true because when I was in London I was able to tether off of my phone and I have unlimited