The Galaxy S5 because has better specs and I love android. I hate iOS, only have an iPhone(use as an iPod) and an android tablet which is way better imo. I will never really own an iPhone as a phone.
Wow, are you trying to twist around my brain?
First of all, please state facts as to why the S5 has better specs.
Second, you hate iOS and you will never own a iPhone, yet you own a iPhone. You say you don't use it as a phone, but what do you use as a phone? Or is there actually a sim card in it?
As to which is better. Don't ask stupid questions, there is no such thing as better. Different hardware, different operating systems and different support. Both are flagships of their respective companies, you can expect high quality from both. Only you can decide which you prefer, people can voice a million different opinions, but you will in the end choose what you want, because in the end, what people say here matters jack poop.
Oh but since you need to know what is better. It's better to not buy either, way for the Nokia Lumia 1030 and get a great phone with an amazing camera. (for a phone that is)