When you guys shoot a scene with shadow and bright sun. Is it better to get an average exposure or expose closer to the shadows? Assuming the details of both are wanted.

Also if anyone is using an Android phone download the app 'phototools'. It has a notepad and a lot of useful calculators (DOF, multiple exposures, minimum shutter speed, blue and gold hour, moon exposure). It even has a light meter (no idea how accurate it is)