Depends on the application. Mass digging where I don't care about the shape outcome, auger hands down. This is usually when I'm mining resources en mass. If I doing precision digging for foundations/etc, then mining pick.
I do agree that the sound is annoying and repetitive. That is probably by design to be an additional drawback. The gas, heat, and repair kits don't bother me at all since it is the price of using an efficient tool that doesn't use stamina.