After one decade in the AEC space, Revit continues to be unique in its holistic "whole-building BIM" approach to design integration. Sure, there are other BIM-ish tools that allow you to design in 3D. And 10 years ago, 3D might have been a differentiator, but today 3D is a commodity!
Whole-building BIM is the ability to design, manage, and document your project information from within a single file, something that no other BIM tool will allow you to do. In a non-Revit workflow, you'd have to design your project across multiple files—not just across disciplines but within the same discipline! Imagine the dysfunctional workflow of having separate files for the building shell, roof, and each interior level for a modest 50-story building. That means you'll be managing at least 50 files just for the architecture. Count on another 50 files for the NI EP and structural design, and now your team has to juggle more than 150 separate files that have to be manually linked together. Then you will have to export your files to separate sheets and views for documentation.
So, now your building has been smashed up into 2D information. And when you have changes, expect to go back to the model and repeat the process, because you can't risk making changes in 2D when they're not bidirectionally associative.
How would you complete the same project in Revit? Well, worst case is that you're probably looking at three files for the same building (architecture, structure, and MEP), because design is a team sport, and you're not all in the same office or geography. So, everyone does their work and links each other's projects. Three files!
As for documentation, it's all in the same file as the respective project—no exporting required. It's a completely bidirectional, multiuser working environment, so if you're trying to compare Revit to what you're used to in other 2D CAD or 3D BIM tools, stop now.