Apple Siri vs Microsoft Cortana vs ‘OK Google’: Who’s better, who’s best

Cortana’s learning the neighborhood. Google’s digital assistant can’t tell a joke. And Siri apparently has a thing for the metric system.
Those are just a few of the things I learned after staging a face-off for the three leading digital assistants. Apple’s Siri and “OK Google” – they’re not big on personification at Google – are now standard on smartphones; Microsoft recently added its Cortana service to Windows 10, so it works on PCs, too.