I´m not a Pro, but I did a lot of Renderings and Animations with Lumion. Examples: My Architectural Drawings, Renderings and Animations
And I also tested Vray for SketchUp. I think: If you want to produce photorealistic Images, you need Vray. If you want render fast, go for Lumion.
Another thing to consider: Vray works right inside of SketchUp. With Lumion you must import a SketchUp-File.