Depends on what is easiest for you, but I would have to narrow it to either Google Docs or Microsoft Word Docs, if you like or use Microsoft the most (Outlook Mail, Powerpoint, Excel, and so on), Microsoft Word is best for you, but if you use G-Mail, Google Slides, Google Drive, and so on, Google Docs is best for you. For me I use Google Docs because I use Google more often than Microsoft.
Hope this helps.