After interviewing or speaking with people who interviewed at these places, the top I saw/heard about were:
Very Top Tier
HSS, WashU, Rush, Duke, UCLA, Mayo, Iowa
Top Tier
Pitt, Harvard, Campbell Clinic, Cleveland Clinic, Case Western, UCSF
Other Top Places
U Washington, Michigan, Hopkins, Vandy, UC-Davis, Loyola, Northwestern, UT-SW, Florida
Hope this helps. Each program has its strengths and if you really want to be sure you are going to the best place for you (and be a good applicant) do some research. If you know you don't want to do trauma, and are trying to decide between sports, joints, or spine somewhere like Rush or HSS would be your top choice. If you like Peds, pick somewhere with its own Peds hospital and a large peds department to get a broad spectrum of approaches and multiple perspectives on indications and treatments. If you know you want to do research go somewhere that offers a 6th year (Case, Cleveland Clinic) and has big researchers. If you don't know what you like you can narrow it down by city, area of the country, research, time with community docs, etc.