Whatever works for you but a 57 vocal recording is definitely clean enough to edit and tune if you want to. It certainly isn't a leaking shitty sound and noise on everything you record with it.
If the OP wants some proper advice, I tend to setup three mics for most vocal sessions I do: a C12, a U87 and a C414/something dynamic. I try them all out and ask the singer which they prefer and decide between us. It's usually splits about 60:20:20 respectively for what works for each person.
My point is it's hard to say exactly what microphone will work for you without trying a couple out, so to get anything other then a generic 'this mic has good reviews and is cheap response', find a friend who owns a few and give them a bash.