Disclaimer: I wrote this being completely free of Microsoft Office since the spring of 2015. I understand updates I have not experienced have occurred since then.
Google DriveIt was six years ago that I first experienced using Google Drive. I've been a fan of Docs, Sheets, and Slides ever since. It long was before Microsoft had any live collaborative capabilities; prior to any decent cloud storage they had to offer. Access has always been the trump card over the Office counterparts.
Though it isn't as prevalent as it was six years ago, I still get naysayers that love their Office and fire back that it isn't fully functional. I can't really argue that point. For the most part, it is true that Office is much more powerful in regards to function. For the majority of tasks, Google will do the job. Especially for educators, Google will do the job. In some scenarios, Google does it better.