There is a process known as R&D. Research and Development, which most everyone is aware of. One doesn't need to be a tech expert or enthusiast, to have heard of this, just somewhat educated.
Because R&D is a process which requires a certain unknown amount of time from start to finish, there will always be overlap between the various competitors products.
Because R&D is done by humans, there will always be similarities in some aspect of the project, and complete difference in others. Especially when designing when designing something that must include identical functionality such as a mobile phone. IE: phone calls.
Therefore I have never had the desire to make an all encompassing claim such as "Android killer" or "iPhone killer". Nor do I have a desire to declare one device superior over the other.
So what is my point? It's that competition and difference is something I enjoy. Just like discussion of pro's and cons is of interest and far more productive than being defensive, angry, and using the deliberate tactic of name calling and insults against others.
In my personal experience, I'd much rather learn and grow instead of acting foolish by fighting. Also I don't agree "It's the Internet", since arguments are as old as time. Why not replace the chaos with meaningful discussion. Appreciate there is more than just one "right way" and make the forum more enjoyable for all.