Microsoft have been named a leader in the latest Gartner Magic Quadrant for Business Intelligence and Analytics. Being in the top right corner is the best position and Microsoft are far and away above the rest:
Almost everyone I speak to is a fan of Power BI and it really seems to be the BI tool of choice for those people who newer to the world of dashboard and reports. This LinkedIn post has got some great points and discussion in the comments too.
Microsoft are relatively new to the desktop side of Business Intelligence, although SQL Server has long had BI capabilities, and the fact they’re seemingly so dominant now is very interesting. This ZDNet article has some great background to how it all came to be.