We should note that comparing studio microphones and choosing the best models in one or another class is an ungrateful thing. We talk not only about objective technical and operation characteristics of microphones. Specific features of your personal perception and even taste are also important. How to choose a studio microphone for sound recording? How to choose a studio microphone that will suit personally you?
No doubt, a sound director shall solely choose a studio microphone that suits him best in order to equip his own studio, as they say, by trial-and-error approach. General comparison of studio microphones will hardly help here: every professional in the field of sound recording has his own ideas how that or another music instrument, vocal or colloquial speech should sound.
Moreover, any voice and any particular music instrument has its own one-of-a-kind features of sounding and every of them will find the best studio microphone, that can emphasize advantages profitably and mitigate its drawbacks. That is why there is not any best studio microphone and you won’t find a single studio microphone, optimum in all the aspects, that suits all instruments and voices.
Of course, special facilities, testing benches in specialized acoustic laboratories will help to perform more or less quality comparison and choose the best studio microphone from a certain range. But real professionals will never absolutely trust the results of such comparison; they can just serve as a support to choose the best microphone for every certain case.