I used my 17-50mm f/2.8 lens the most when I use it as my walk around lens.
I used my 100mm f/2.8 macro lens the most when I want to take macro shots (insect)
I used my 70-300mm lens the most when I am at the zoo.
I used my 85mm f/1.8 lens the most when I taking outdoor portrait photo of my family members.
Depends. I like telephoto images the most, so I use a 70-200mm f/2.8 most frequently. For a few years, I really liked the 80-400 VR lens from Nikon. I also like a 105mm prime lens. For sports and nature, a 300mm lens is probably my go-to lens for distance shots.
I mostly like shooting people in public places, i hate having to get too close to them because i do not want to disturb the scene. I guess it would probably be similar to wedding photography in theory.