Annie Murphy Paul indicates that proprioceptive associations may be more powerful than auditory or visual ones as she notes that "research shows that making gestures enhances our ability to think even when our gesturing hands are hidden from our view."

This is something that could be researched and analyzed.

My personal experience is that visual >> auditory >> smell >> proprioception. Smell with respect to memory is incredibly difficult to exercise as are auditory method. Visual and proprioceptive methods are easier to actively practice though.