The post that refers to "the task at hand" also suits me. Sitting (practicing, learning new songs, etc.), I use my Martin SP-00016TR. Nice small balanced guitar and easy for a woman to handle.

Performing (and outdoor jamming with way too many instruments, etc.) I use either Martin D-42 or Martin HD28-LSV with custom Adirondack spruce top. (A really tough choice between these two dreads.

Interesting thread! I enjoyed your differing choices and opinions.