I guess it depends on what you want to do, produce photographs or show the details of your models. One is not beter that the other, but if you want to sho detail, you must control the light source(s). Take a look at the posts of "Sasd's" dioramas, you see the excellent detail he puts into his work by controlling the angle of the light. The marching scene above may have shadows, but the shooting angle reduces the believability of its being a photo of a real event. Maybe there's too much depth of field to have frozen the motion of the wheels. (Small aperture for depth but that requires a longer exposure.) There's also something, and I can't put my finger on it, that doesn't look right. "Matrixone's" airfield photos work very well because he places his camera at a level that would replicate a person hollding a camera and taking the picture at a scale height.
The issue of light temperature has been pretty much overcome with digital cameras featuring white balamce.
Below is my "photo studio" where all the pictures you may have scen in the figure threads were taken. The three lights can be moved around to reduce shadows and show the model to its best advantage.