Me, my wife, my mom, all of my siblings (6 in total) besides 1 and both of my nephews have iPhones. Of all of them, I was responsible for about half.
My dad got an iPhone 4S and didn't like the touch screen so went back to his Blackberry (bless his heart), and my brother recently switched from the iPhone 5 to the Galaxy S3. He's not really that tech savvy though, and he got it because his company bought everyone a new phone and it was the only choice. He said he doesn't really see a difference, which tells me that it doesn't really matter what phone he has, he's going to simply use it at a basic level anyways.