After " Bidirectional Interior" where I did compare the 3 renderers for an indoor scene, I decided to do the same for an outdoor arch viz.

The goal is not to get the same renderings, but to observe what happen when you switch between the three methods, with as lest changes of settings as possible (only shaders & lights). The three renderings have almost the same post-compositing based on the BI passes (Blender nodes, color correction, vignetting, fog effect,...). The scene is not really complex (a simple snow ground, basic architecture, few furnitures, ...), the shaders are not sophisticated. The forest is made with a particle system and only one birch tree made with a slaping add-on. The sky lighting is obtained with an UVmapped hemisphere, used as an emit object for shader. This simple method provides good and fast results for all kinds of render engine, saving lot of time. 

Of course, BI doesn't have a Global Illumination solution, but GI is not really necessary for outdoor scene, specially in this case, and the Ambient Occlusion can be very usefull to simulate this kind of lighting with an HDR environnement. I believe, every new Blender user must learn to know how to use the Blender Internal. The method is quite old, but you get to learn a lot about how to configure the textures and lightings. It's useful for improving your technical skills. Blender Internal is pretty fast and versatile with several of rendering passes.