Obviously this depends on what you want, but in the DO world I've heard KCOM, MSUCOM, and PCOM time and again as people's first choices.
I only applied to KCOM, PCOM, and Thomas Jefferson University (they have an integrative medicine program) myself, and ended up at KCOM. KCOM does have its problems- such as failing out a bunch of students (>10% of the class for 2003 and 2004 were either 5th-yeared or kicked)... and probably more than half the class is afraid of failing something every single semester. (I kid you not)
If you manage to survive you'll be a darn good physician, and KCOM arguably has the best OMM department. Decent basic sciences, but to some degree it appears they select quantity over quality in the curriculum. some of the classes are very good, however, and you WILL learn everything about everything before you leave this place. many times over.
Be prepared for high-stress (I'm working with some of the administration to improve this), and a small, charming, friendly, boring town that you wont have the time to see anyway. You wont believe how much you learn here (I'm nowhere near the top of my class for anatomy and I know more anatomy than a MD student I talked to who was going into plastic surgery and was in the top 5% of his class). we'll see how much of it I remember...
MSU i understand is the best for research, and in the early to mid 80's they were the best DO school overall. While their research is still probably the best of any DO school, I understand they have lost some of their best faculty over the last decade and board scores have dropped. Decent OMM. Very difficult to get into from out of state (and expensive until you can get residency).
PCOM is perhaps the best respected DO school by MD's, as all of the doctors in philly (MD and DO alike) seem to like PCOM grads (and I understand philly has something like 1/6th of the physicians in the US). Apparently excellent quality basic sciences. I've heard they have a pretty lax curve for the class, so nobody fails, but this means there is a lower bar for students. I've also heard mixed things about their OMM- apparently many students there don't take it seriously- though they do have at least one really good prof and there is the opportunity to learn.
NECOM- good all-around school. Check out Jim Jealous in Maine... (not affiliated with the school from what I understand, but one of the best OMM guys around).
WVCOM good for family practice, if you can survive the embarassment of living in West Virginia... <img border="0" alt="[Laughy]" title="" src="graemlins/laughy.gif" /> hey, missouri ain't much better.
PCOM (already mentioned), NYCOM, CCOM, TCOM- practically MD schools that award the DO degree, but good at what they do. But if this is what you want, why not just get an MD?
the rest? I'm not going school bashing.
be wary, as not all the DO schools have high standards or good clinical rotations. Ask around if you are considering the others.
peace
bones
KCOM '05