We pitted digital assistants against each other to find the most useful AI

We started the contest by asking the assistants basic questions about topics like the weather forecast, conversions between different measurements, and trivia. Every assistant could answer a simple query about the weather and provide the forecast for the next few days. We did notice some very slight variations in the responses, probably because these apps rely on different sources. Alexa gave the most useful information in the shortest time, which makes sense--as a voice-only program, it has to be as succinct as possible. They could even update us on the time in different time zones--though we should knock points off for Siri and Cortana, which didn't include the day as well as the time in their spoken responses, something you need to know if a region is a day ahead of or behind you.