I use Siri. The male version has better diction and is much clearer. I can understand what he is saying better than the female version due to my hearing loss. When getting directions while driving that is very important.
I find OK Google is very handy if I want to check out something on the TV (news, location, personality, whatever). It gets comical when I say, "OK Google..." and Mrs D's phone springs to life at the same time as mine. And, yes they reply in perfect synch.
Siri is like Cortana, but on Apple products. It preceded Cortana, if I remember correctly. OK Google can be used on Androids.
This post was edited by Bozette at March 15, 2017 8:38 AM MDT