My favourite pick will be the135mm f/2 DC combo, when I have enough room to maneuver. The bokeh is just creamy / buttery, the center is sharp enough to pick out the details on the D810. Doesn't perform well with strong back light & highlight though, has visible purple fringes. Other than that it's my go to portrait lens.
85mm f/1.4G vs f/1.8G, it's debatable. I have shot with the f/1.8G, its sharp or sharper than the f/1.4G from f/1.8 to f/2.8 but it lacks the contrast & color of the f/1.4G. This two 85mm is so sharp when stopped down that it pick out all the skin, pores & hair details.
Tight locations, it's the 58mm f/1.4G...it replaced my 50mm hands down.
For the $$$ shot, I usually take the 200mm f/2 & the 85mm f/1.4G.