SLR = Aperture or manual.
Aperture for DoF control, manual if I need to keep an eye on shutter speed or using flash.
GF1 = Aperture or shutter mostly, some manual if using flash.
For DoF control or keeping the shutter speed up in low light.
LX5 = Aperture, shutter or Programme mostly, manual if using flash.
Aperture or shutter for the usual reasons, Programme for forget the settings shooting.
I'm happiest in aperture or manual or at a pinch shutter modes as frankly I don't understand the other "creative" modes they have these days.