1. Always full manual M using 180 degree rule and ND filters 2. Shutter priority with 180 degree rule 3. Aperture priority to use bokeh or lens sweet spot 4. Auto exposure to adjust exposure easy and fast (like photos) and then AE-lock 5. Depends on scene and subject... 6. Other I use aperture priority outdoors and shutter priority with auto iso indoors (or low light) with my Panasonic cameras.