My collection is small but suites me for now besides...I jus don't know no better
2 - Avalon M5's (happy birthday to me

) - for vocals...some acoustic & electric guitar and stringed instruments like cello, violin, piano.
1 -
Art MPA Gold - drum over-heads, some vocals (I know...TOOB...just don't drive it hard it sounds nice) and general puposes.
1 - DMP3 - Acoustic guitar and drums...especially snare...I like the snare snappy. Oh,...and hi-hat.
1 - Presonus MP20 - Drums and acoustic guitar and vocals behind a tube mic. It's another nice general purpose mic-pre. Very clean with decent gain.
2 - Presonus ToobPre - Bass and keyboard DI's...awww...shut up 'bout it already!
2 - FMR/RNP - Anything clean...drums mostly for me oh!...I like it with banjo!
I listed them because, I couldn't pic a favorite...it depends...the application and the mic.
I generally prefer all acoustic insturments to be recorded clean...so, the cleanest I can afford is what I have...vocals I know are acoustic too but, sometimes don't sound best cold. The ability to "dial in" a little flavor is what I'm after there. The same for DI's...clean can be nice but sometimes/often, I like to soften up the artificial/digi-sounding keyboards.
So there.