They are both good phones. The S6 has a better camera and has a faster processor. The Apple OS and UI are much better optimized for speed.
If you can wait, I suggest waiting the Samsung S6 is coming out in a few months http://phandroid.com/2016/01/25/samsung-galaxy-s7-leak-testing-facility-camera-module/
There is a rumor of a new Iphone 6 coming out
If you want an Android device and like a keyboard and value security, I recommend the Blackberry Priv.
But as I said, if you are still deciding, play around with both and also look at what applications you need to run.
Uh, no. It has a higher clock speed. It's not a faster processor. Check out what the tests actually show. The iPhone 6s and 6s plus put to shame the Samsung's faster clock speed processors, every time, in speed tests in real world head-to-head and geek bench testing.
Who needs octa-core CPUs and 4GB of RAM? iPhone 6s is the fastest phone on the planet
