If you live in Illinois is US Cell an option for you? Im north of you, but they have the best customer service in my experiences and in the Midwest they have excellent coverage compared to other carriers. US Cell will still bend over for you if you need them too, the others tend to just leave you hanging in my experiences.
No contracts after 2 years is one of their perks, the belief points are also nice. They let you upgrade phones much faster which seems to be needed with my environment and the way smart phones are. With this program I haven't kept a phone longer than a year the last 3 times. Two other people on our plan also rotate phones quickly. The others on the plan do not use their phones much and still have Razr's. This is why the rest of us can upgrade often, you are allowed to use any of the lines to upgrade your phone. So if phone 1 needs to be upgraded and line 3 is eligible, you can just use that (im guessing other carriers are the same), if none of the lines are eligible you can pick the one that is closest to becoming eligible and then apply belief points to move the date closer providing you have enough belief points. The more you spend with them and the more on time your bill is, the more belief points you get.
Like any cell company they have their issues as well, but overall I have enjoyed dealing with them.
They are missing one thing that keeps a lot of customers away, the iPhone, personally I do not want one nor do I like the iPhone so its not an issue for me, but for those who have to have one, it could be a problem.