some of the people on here have no idea what theyre talking about,
i use the Audix OM7(lol read the OM8 on here somewhere and it made me laugh, NO SUCH THING AS THE Audix OM8 btw)
and the Blue Encore200,
The Audix mic is made for any type of vocal application,
it has a small mass diaphragm which allows it to get more "gain before feedback"
whilst also dropping the signal on average about 6-8db,
this is good for getting more of a signal going through the PA,
and allowing for even higher levels of the mic volume in the output mix
by being able to turn up the gain higher,
and the mix higher, which means you not only get a better signal,
but also are capable of getting a louder stage volume before you get feedback loops,
(some people seem to think that this high gain before feedback only pertains to gain, ha!)
plus, its is also an extreme hypercardioid mic,
1-from its polar pattern,
2-from its small mass diaphragm
its an exceptional mic for live use,
the blue is a very good sounding ACTIVE dynamic mic,
yes ACTIVE(requires phantom power) DYNAMIC(not condensor)
it has a very warm, extremely consistent sound to it,
as well as being another great mic for any occasion(SPL up to 147db!!!!)
it is a cardioid polar pattern, but has blue's incredible unique off axis rejection(kinda neat)
so, my live mic situation depends on the stage,
i use the Audix for practice and live bigger venues,
and the blue for smaller venues, some practices, and recording guitar,
-Eddie