I use a Beta 58 and a BetaGreen 2.0 for rehearsal vocals. I don't have any Beta57's, but I do have straight-up oldstyle SM57's from the late 70's/ early 80's. I don't use them for vocals so much, because I find the small-type screen/lack of screen to be slightly weird.
SM57, SM58, Beta57, Beta58, these are all fine, durable mics for live and/or rehersal space vocals. As is the BG2.0 if you come across one. I've never tried my M88 for vocals. It always either stays in the cabinet for practice, or gets set up on a guitar cab when recording.
Vocal Mic
11"The bastards have landed"
www.myspace.com/thechromerobes - now has a couple songs from the new album
www.myspace.com/thechromerobes - now has a couple songs from the new album