Step 1 scores. Sorry if this isn't on your list, but class rank is often concealed deep within the deans letter and sometimes in cryptic terms such as "excellent" "very good" "good", etc. Step 1 gets you in the door to interviews, but that's not all that matters so don't get down too much if your score is subpar. Now if your class rank gets you AOA then that's a different story, AOA probably looks real good as well. As for research, sure it will help at programs that stress research. At community hospital programs, probably not as much.