Tulane has Early Action and Emory does not. Tulane also offers free applications and this generates so many EA applications.
I do believe Emory values ED2 candidates and that those who apply ED2 get a big bump whereas the RDs do not. At that, I’ll disagree with others, although I believe ED2 had more admissions for Class of 2022 than for 2023. Of course, the Class of 2022 is Emory’s largest and they dialed that back last year. It’s tough to guess on trends. In any case, I still believe ED2 is a good option if you aren’t ready to commit by the ED1 deadline (haven’t visited yet) or Emory is a strong second choice and #1 doesn’t work out.