A thing to remember with all of the high end tube mics is that they were designed to provide some version of "Accurate". The problem with this is, there is no such thing, so all of these go about this goal in a different way.
If I were recording hip hop vocals, I think I would first go to an sm7b - they have a nice aggressive thing and the proximity effect, and the singer will be less likely to drift away from the mic and lose the proximity.
My next choice would probably be a u47fet, again because of the aggressive thing. They are just faster than the tube mics. U87 would also be quick to mind.
U67 could be a good choice due to the nice high frequency thing they have going on, but with the big lows too.
U47 is a go to for many things for me, but is really fantastic for its softer highs and nice big low mids, although this needs to match the song/singer. I find for my own voice usually my 47 or 67 clones are the ticket, and I prefer the 67 for songs that need the excitement.
I have a 251 clone with a beezneez capsule and a cinemag transformer. It sounds fantastic and is a go to instrument mic, and also can't be beat on some vocalists. It has even more excitement to it than the 67 and is the cliched mic of choice for female singers, and I like it to add some excitement to lower voiced men. I could see it being perfect for the right hip hop voice, but also annoying with some voices. I haven't heard the c12 circuit, but I think between the 2, I would pick the 251. and I did!
Anyways, long post to say there really isn't one mic to do everything.