Here's something you might find interesting.
Look here
It's a comparison between the following mics in this order...
Neumann U87, Studio Projects B1, B3, C3, and Oktiva MK 319 large diapraghm condensers.
Studio Projects C4, ADK SC1, AKG C451L, C460B, small diaphragm condensers.
Shure SM 57...