There's really no "code" for match lists. There are so many more factors that play into the match than just credentials and name of the school. Students self-select when they apply to programs. What I mean by that is that someone may have the credentials to be competitive at any program in the country, but choose not to apply to big name programs for a variety of reason. The reasons may be geographic (ie the desire to live in or avoid certain areas of the country) family related (especially for married students...spouse career considerations may play a big role) or perception of the top prgram (ie a top program may be percieved, wrongly or not, by a student at a small state school as being populated by snobs and thus not an environement that the student would want to apply)
That said, I'd say that any school that regularly has a few students match in competitive specialtys (ortho, optho, ENT, derm, EM) should not hold you back when it comes to match time. Much, much more important to the whole residency application process are your grades and board scores, and the letters of recommendations you get from clinical faculty. I go to a state school in the southeast, and interivewed mostly in non-southeast areas. I definitely got the sense that some of my fellow interviewees thougth my school wasn't a very good one (and certainly i'ts not got the best curriculum). However, the residency program for my field here is pretty strong, and the chairman is very well know. So my chairmans' letter of recommendation carried a LOT of weight.
Other things to conisider if you are fortunate enough to get multiple acceptances (most applicants don't) are how well you think you fit in with the students, strength of curriculum, strength of clinical experience (ie are students mostly observers or are they active participants in patient care) and cost (don't discount cost by thinking that loans will be easy to pay off on MD salary...the interest racks up during residency and the payments can be a huge burden, and big debt can affect your credit)