If you're in the market for an iPhone, one of the most important things to consider is which carrier to use. Each one has different price structures, coverage, functionality, etc. Fortunately, CNET has posted an article comparing the offerings of the four major carriers: Verizon, AT&T, Sprint, and T-Mobile.
You can compare each carrier's 4G LTE network coverage, unlimited or tiered data plan, and price range for voice, text, and data plans. It gives an overview of carrier's monthly plan offerings, iPhone cost, whether it will work overseas, the ability for simultaneous voice and data, whether FaceTime will work over cellular data, and other considerations.
Plus, author Lynn La draws a conclusion for each carrier. AT&T is ideal for multitasking, she says, because it offers simultaneous voice and data. Verizon's strength is the breadth of its network (which even extends here to rural southeast Iowa). Sprint's selling point is unlimited data. T-Mobile is the one to get if you want an off-contract phone.
Before you make a decision, be sure to find out if your area has 4G LTE, and if not, when it's expected to arrive. I'm really impressed with how speedy LTE is.