It depends quite a lot on the singer and genre.
I mostly record rock 'n' roll, psychedelic rock, punk and garagerock with the occasional folk, metal or weird ass stuff.
Usually I go with the stock preamps of our DDA Q desk to a GL Audio 5021 comp on moderate settings. Only recording on tape, can't be bothered with digital.
My most versatile one might be the Oktava MK-319; good for most eveything, very musical sounding and rarely need much EQ. Has a nice gutsy sound up close and don't have the plastic sounding highs of many other cheap LDC.
For female singers or dudes with lots of air in their voices I dig Neumann KMS105 as well as for dudes with great voices and mic tecnique. Used it for a folk artist two days ago, he recorded his acoustic guitar at the same go. Great natural sound and almost as little bleed as there would have been in a 57/58.
I love the
Sennheiser MD421, but I don't have access to one anymore. The 60's version is great for rock 'n' roll vocals, I assume that the new one is too.
Happens that it's just 57/58 if I'm asked to get a filthy sound, if the singer is too unfamiliar with condensors or just because it sounds good on a particular individual.
A few times I borrowed a SE Gemini, can't remember which edition. Sounds gorgeous on backing vox, especially when doing the Roy Thomas Baker thing with stacking up 16 to 24 voices with four people sharing the mic and repeating it several times. Good on lead vox too but actually prefer the Oktava.
Recently got an old
Sennheiser MKH 406 small diagram condensor. Tried it on my bandmate who's a great singer and worked really well on him, got all the details and sounded so much like real life. Later tried it on a nice female singer for whom it sounded nice too but she didn't have the mic tecnique to get the most out of it, or at least it was tricky to mix.
Also have a Beyer M201 and a bunch of oddball mics around if I want a different flavour but the ones mentioned above usually does the trick.
Would love to get my ribbon mic fixed and to get a Beyer M88 and a Sennheiser MD-421.