yeah, the 70% is a little misleading, d/t self-selection. 70% may be the actual figure, but the total # of spots is around 250, and I believe in 2004, about 330 people actually submitted rank lists. The mean step 1 score of those who applied but didn't match in ENT was around 220. I believe the mean of those who matched was closer to 240. These #'s used to be available on the sfmatch website, but now that ENT is an NRMP field, I'm not sure where you get the accurate data. As someone who interviewed in ENT and later decided to withdraw to pursue a different field, it seemed like programs were interested in what was said about you. In other words, yes, you need a 240, research, great grades, and AOA really helps, but beyond that, they really want good, good letters and really stellar evaluations from the scope of rotations, not just your ENT rotations. Most of the interviews were somewhat informal, as well, suggesting that they were particularly interested in figuring out whether or not you're a tool (which may or may not come out in letters). So, to quote a department chair, you really just have to be excellent all the time.