When applying to schools you want to look at both objective factors and subject factors.
GPA, DAT scores, demographics... those are all objective factors, and all schools will place great emphasis on them in the selection of a student.
Research experience, clinical experience, personal qualities... etc, those are subjective factors, and hence you can't really put a finger on how much they will help you in the eyes of the ADCOM. Nevertheless, they can only help you.