Siri vs. Cortana vs. ‘OK Google’ | Who’s better?

Apple's Siri, Microsoft's Cortana and Google Now - which of these voice-enabled digital assistants is better? Here's a digital showdown that shows that none of the services are perfect. Shocked? To put it in context, each of them have distinct personalities and are good on factual questions. Siri's programmers have the best sense of humor. Google stays focused on the task at hand. And Cortana is quickly catching up to both of them.