I feel that there is a significant difference between makers. Neumann is widely considered "the best" but at well over $800 per-capsule, you have to ask yourself if it's worth it, or if that extra $500 + could be put to better use somewhere else in your studio.
Here's a great shoot-out that our own Chunger did with a Thiersch blue, Eric H hybrid, and BeesNeez;
http://studio939.blogspot.com/2014/11/vocal-microphone-and-capsule-testing.html
And, here's an older comparison with a few different options and re-skins (some of which aren't currently available);
http://www.panphonic.com/M7/
Keep in mind that "best" is a relative term that is influenced by application, perception, and personal taste.