Great question Andres,
I share the same curiosity. I currently work at a multidisciplinary firm and have been weighing the pros/cons of multiple platforms to create the best work flow with a revit model while also coordinating closely with the civil engineers as well. I feel like the biggest goal/challenge is creating an accurate 3D site “surface” for the revit model that allows for modeling and integration of site features (stairs, ramps, walls)
The reality is that as landscape architects we still work and document in planametric views and design fees and complicated sites do not always allow for sophisticated and cumbersome modeling. I dont feel that revit is there yet as it applies to site design and terrain modeling. There are some third-party softwares being developed but none that we have felt meet our work flow needs. We actually just took a workshop using civil 3D as an option. It allows for the creation of a site terrain model that can be referenced into Revit but allows us to still work in an AutoCAD, planametric world and coordinate more closely with the civil engineering consultant.
So to answer your question. We couldnt find any strong benifits to working in revit. 2D drafting in revit is fine but then why work in a 3D model. Good luck and let me know what you direction you decide to go in.