I never used Android before, I only used Windows Phone, so I want to try out something new, and I think if I want fun I need an iPhone not an Android phone. 16gb is enough for me, so I don't know which iPhone should I buy in the future.
You should buy whatever device you think is best device for your situation, whether it's an iPhone or not. For typical usage (talking, texting, emailing, photo taking, music streaming, and a few non-CPU intensive gaming, the iPhone 5C should be sufficient, in my opinion.
So you are thinking to buy Iphone. If you are jumping Iphone for the first time, You are following new generation trend. Apple phone is the best phone in terms of quality, design, higher technology etc. You may get large number of functions in the iphone. I would give you suggestion, you must go for Iphone whether it is Iphone 5 or Iphone 6 both are good.