I work at the highest sample rate/bit depth that my equipment will allow which is currently 44.1/24bit.
When I get home from this tour I’m going to build a faster PC and move up to 96/24 and also a 64 bit environment as I’m sick of running out of RAM. As a final medium 44.1/16 is perfectly adequate and I’m 100% positive that nobody on this planet could discern 44.1/16 from 44.1/24 in a blind listening test.
96khz, on the other hand, is glorious and will hopefully become a standard in the future.
