There is nothing to defend.
I use (and support, I am IT to my heavily gadget using family) practically every common platform (iOS, OSX, Windows, Android, Unix, Blackberry,...). I pick what is right for the job.
If someone asks, I ask "what? and why?" and suggest the platform(s) which does the job best at acceptable cost. With personal preference being one of the considerations.
More than half of our devices are iOS/OSX. Hm...
Nothing to defend, provide unbiased, objective suggestions, list pro/con arguments, let the other person decide.