Yo Josh! I've got a few questions, First- does the mic have to be handheld, or are you a guitarist-singer? Frankly, the best live dynamic vocal mics I've used are radio mics that weren't meant to be handheld, such as Shure SM7b and Electrovoice RE20. Second question- How big is the group, and how big are the audiences? There are a lot of really good condensers that work well for say, a solo acoustic artist wjth a crowd of 75 in a coffee house that will be feedback monsters with a good sized band and a crowd of 400. Third question- what will it be plugged into, and who's running it? It's one thing if you have a good board, phantom power, and sophisticated EQ with a good sound man dialing out troublesome feedback frequencies, and another if you need to plug it in, set your levels, and forget it.
For smaller gigs playing solo, or with a good sound man and a good board (that provides phantom power) in a small club, I like a good condenser, such as AKG C535 or Neumann KMS105. For point and forget, I like Shure SM7b. I'm a guitarist, so frankly, I don't give a damn that it's not handheld. It doesn't feed back, and it never sucks. If it has to be handheld, for larger gigs and louder bands I like
Sennheiser e935. Finally I never use Shure SM57 or SM58. It's not because I don't like those mics. It's because they don't like *me*.
The SM57/58 invariably makes me sound awful. No clue why, but I know it's not the mic, because they work for plenty of people, including people I work with. It's simply a shoe that does not fit my foot. I've always done better with AKG dynamics, such as D390 and D770, and with Sennheisers, such as e835 and e935. Beats me. Good luck-Richie