Which iPhone should I get? The 4s, 5, or 5c?

I don't know which one, the 4s is free with the contract and the 5 and 5c a 99.00 with the contract so 4s seems more appealing but i don't know.

Get a samsung s4 or 3 and don't worry, be happy, not a supporter of iphones, some providers are running good deals with samsung phones