I've only ever had Androids and love them to death. I don't like the operator limitations the Iphone has.
My boyfriend has been an Iphone fanboy since Gen 1 and has had Iphones since they first came out. He finally decided to make the switch the the Galaxy S4 from the Iphone 4s. And he loves the S4.
He said this to me, "The Iphone was amazing when it first came out. It was ahead of it's time. But it hasn't really changed much since Gen 1, while Androids have been improving each year."