I'd get the iPhone. Why would you put up with Google's continued security parade of issues.
How about this latest? READ http://arstechnica.com/security/2015/11/new-type-of-auto-rooting-android-adware-is-nearly-impossible-to-remove/
Google has had plenty of time to work this out.
Would you get iPhone 6 128 GB, iPhone 6s 16 GB or Samsung Galaxy S6 32 GB? Why?
(I might be able to get 6s 64 GB but kind of unlikely...still negotiating with mom)
I need to use this phone for a long time