ok, heres my thoughts
for birdsong, i liked the oktava much better, the naiant's were WAY too noisy IMO
but for the rhthym, i like the naiant's much batter, they seemed more musical and full of the life, the oktava seemed stale IMO
so for quite stuff i would never touch a naint, but for rock bands and whatnot, i think the MSH mics are a sweet deal