LibreOffice Draw vs Microsoft Visio

LibreOffice Draw
Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, etc. . Draw lets you manipulate graphical objects, group them, crop them, use objects in 3D and much more.
Microsoft Visio
Create professional diagrams to simplify complex information with updated shapes, collaboration tools and data-linked diagrams. Simplify complex information with professional diagrams you can create in just a few clicks. Visio makes diagramming simple - whether you want to quickly capture a flowchart that you brainstormed on a whiteboard, map an IT network, build an organizational chart, document a business process, or draw a floor plan. Microsoft Visio free cloud alternatives are: Gliffy, Google Drawings, Creatly, DrawAnywhere, Diagramly
Face to face in the news:

2017 - Microsoft releases public version of Visio Online for Office 365 commercial users - a new advantage over LibreOffice Draw

Microsoft has pushed out cloud version of Visio, making it available for the first time for paid Office 365 users. A preview version of Visio Online was first made available to a select group of Office 365 users in November and Microsoft utilized their feedback in launching the current version. Like the previous version, the public release is free and aimed primarily at allowing users of the full Visio for Windows application to view and collaborate on Visio diagrams on any platform that can run a web browser. Because Visio Online is just a viewer, you will need to create your Visio diagrams in the full version and then share them using OneDrive for Business or SharePoint Online. Once they are available online, then you can also share them using the Visio Online version. Thereby Microsoft Visio gets more cloud-friendly than LibreOffice Draw