Live Performance Room Mics

[jmh]

I don't do much live sound - with the exception of an annual fundraising event for a local food pantry (The Pine Tree Coffee House in Monroe NY - you are all invited 4/5 - give lots of money). It is a series of performers with a variety of instrumentation. Singer songwriters, choral ensemble, strings, vocalist with piano. Not a particularly loud event but the occasional drum set or guitar amp may appear (which I will make no attempts to mic).

This time I have decided to record it so I will record all of the channels I am likely to use and main mix for the duration of the show (it will be set it up at the beginning and left alone). My thinking is that what I really want to capture the event with is a stereo pair placed in an optimal spot in the room. I will take some notes regarding the geometry to help with mixing any of the other stuff back in afterwards when it seems beneficial.

So my question is what mics types and positioning would you choose to best capture a room?

What I have already that I could use is a pair of Rode NT2a (these are great)
or (these next 2 are if I want to succumb to temptation - naturally for other reasons)
AT4021 small diaphragm pair
an AT4080 active ribbon plus a large diaphragm condenser (maybe one of the NT2a)