1. iPhone 5
The iPhone 5 is a great device all round. It has a fantastic screen, superb camera and an unmatched ecosystems of content. It also has the new Panorama mode which allows you to take a much larger picture.
Ideal for: The person looking for the best iPhone.
2. iPhone 4s
The iPhone 4S to this day remains a great device. Having a great screen, good camera and large ecosystem, the 4S is a great buy considering that it will be upgraded to iOS 7.
Ideal for: The person looking for a mid-range iPhone.
3. iPhone 4
The iPhone 4 is a great device if you are looking for a cheap iPhone, the 4 is the way to go. It still has a fantastic screen and a camera that no competitors at that price point can beat.
Ideal for: The person looking for the budget iPhone.