My stats:
MCAT: above cutoffs
GPA: 3.99
ECs: diverse; exec for a few health promotion clubs, clinical research for the past 4 years with conferences, abstracts published, no first-author pubs yet but have heavy involvement in the different components of a study, several academic scholarships, long-term volunteering at hospitals, a few years of mentoring youth and university students. A mix of paid and volunteering ECs.
Essays: Worked for more than a month on them, and had several people proof-read them. Felt pretty good about them and included a mix of personal experiences