I can't speak for all schools but I know OHSU sorts them into 3 groups. Group 1 are applicants with at least a 3.2 GPA, at least a 15 in every section, and all the letters and all required classes. Group 2 is between 3.2 and 2.5 GPA with all of the above. Group 3 is below 2.5 GPA. I'm not sure if there is another group for people who don't have all of the required stuff or minimum values. After the academic update they said some people move from group 1 to 2 and some move up from 2 to 1.