I have both, one for work where I don't have a choice and a personal phone that I bought for myself.
The work one is latest specs and version and is a nightmare fussy pita where the OS intrudes and makes a nuisance of itself. I constantly curse it's irritations, failures and needy tinkering requirement.
My personal phone barely makes itself known, it does it's job - as a platform for the apps and messaging without me thinking about the phone or OS.
I'm not interested in marketing specs or silly pissing contests, I really am not interested in the phone, I just want to get on with the jobs I use it for.
That's why my personal phone is an iPhone 5.