JPHazelton,
I am sure that you are well aware that there is no "official" listing of the top 4 D.O.'s in the country; this is not the NCAA tournament. However, after training in the field of OMT long enough you begin to get a feel for the elite group of very experienced and successful DO's practicing manual medicine. This select group of physicians are set apart from the rest of the field due to the quality of the knowledge passed to them from their teachers. For instance Dr. Stiles trained with George Laughlin DO, and took over the practice of Perrin T. Wilson DO, internationally known figures in the field of OMT. Dr. Stiles went on to establish the first hospital based OMT service in Waterville Maine and has won numerous awards as well as publishing numerous articles. His ideas, theories and techniques can be found in many of the text books you are studying in school, for instance Greenman's textbook, Manual Medicine.
Another very successful DO is Stephen Davidson of Phoenix AZ. Again, he stands out in large part due to the quality of the physicians he studied with. In this case Dr. Davidson had the opportunity to study with Dr. Robert Fulford, an individual with whom any undergraduate OMT fellow should be familiar with.
I am not saying that there are not other quality OMT instructors, but honestly, I have not seen a more qualified instructor than Dr. Stiles affiliated with a medical school. Most people of his caliber reside in the world of private practice. This is what gives PCSOM an edge in the OMT realm and that is why I believe PCSOM is a unique school and worth looking into. PCSOM is clearly devoted to manual medicine and allows the student the clinical settings to practice and hone their skills. I hope that this discussion helps the individual who posted this thread to make a well informed decision and expands the knowledge of those who read this post in regards to OMT.
In case you wanted the names of the other two of the four top DO's in OMT; I would say Dr. James Jealous and Dr. Joe Fields; both in private practice, but teaching courses in the U.S. I am sure there are another 3 or 4 individuals who could be put in this elite group.