My question is this: Since MD residencies have a reputation for being a higher quality education than DO residencies in the same field, why does it not stand to reason that the quality of education at an MD school for years MS1-4 is superior to that of a DO education?
I'm just curious as to what year you are in. I for one would take offense to saying my education is somehow inferior to any MD schools program. Namely since I've had MD students offer nice sums of money to purchase my Pathology notes due to who my instructor was at my lowly osteopathic school.
But don't let your prejudice blind you to the fact that the Cline report way back in the 1953 acknowledge that at the very least, the pre residency training is on par with LCME standards.
The first two years are standardized, but not so much the 3rd and 4th years. Many DO programs do not offer the same amount of time for electives as do many MD programs. Many DO programs also require a whole lot of primary care rotations, and do not have many hospital affiliations and connections to send their students.
I guess it's the internist in me, but Primary care is the basis for all medicine. The worst specialists (IMHO) are the ones who do not know their basic medicine and how other conditions outside of their field affect their management of their pts. I'm not saying a cardiologist should managed PE, but he should be able to diagnosis a PE or know when to refer to GI, etc, etc.
For example, most MD residency programs are located at large, university hospital settings whereas most DO residency programs are at rural clinics and private practice settings.
I'm just curious as to what experience you have in either setting to offer any input as to the pros & cons of academic over community hospitals. And for the moment I'll ignore your last sentence which is blatantly inaccurate.
You can't tell me you will see as wide a range of pathologies and disease states at a rural program vs a large university hospital.

If you truly wish to look at the numbers, you are far more likely to run into a wider range of pathologies and diseases in rural hospitals vs university hospitals. The ratio of physician to patient is much higher in rural settings, and the rules of epidemiology do not magically cease to exist in small towns. 20% of American's live in "non-urban environments" while only 11% of physicians work there. And if you were to look at the direct Physician to patient ratios, you'll see a huge disparity.
Rare diseases are not limited to urban areas. As long as the physician is good, he'll find all of the rare diseases. I can tell you from personal experience that during my BFE rotations had far more pathology than my urban rotations.
Why do these same reasons not apply to 3rd and 4th year clerkships? Wouldn't you want to attend a medical school where you know your 3rd and 4th year clerkships will be at a large academic hospital vs a rural clinic?
My experience in an allopathic academic center was boring to me at least. I had a month where I did a single H&P as a 4th year, I was barely allowed any pt interaction and we only saw 1 rare disease.
Let me put it bluntly. Do you think you will see as many different demographics of patients, see as many rare diseases, and learn more new techniques at Mass General or Pontiac Osteopathic Hospital?
Let me put it bluntly to you. Do you think that you, as a 3rd year or 4th year student will be close enough to see these new techniques and procedures that you will actually learn something about how to perform them?
I've already addressed the idiocy of the assumption that rare diseases are limited to academic centers.
Bigger name institutions recruit and retain the best and the brightest from around the world to teach, research, and treat patients. By the same token, big name institutions attract patients with rare and difficult diseases from across the globe in hopes of finding the the best treatment and the best doctors. To say that there is not a difference in education from a 3rd and 4th year medical student's perspective from training at those two hospitals would be untrue.
And I'm curious how do seeing these big names and 'rare diseases" improve you as a physician? It won't help your intern year when you're managing bread and butter CHF, PE, HTN, etc, etc. You can not sit there with a straight face and tell me that you will in any meaningful way participate in any new and exciting procedure.
This reminds me of a running joke in the Surgery department from my home schools affiliated hospital. While I was on GS service my 3rd year, the Surgery residents left for 2 days to go to a huge endoscopy training session in Texas. They came back and were laughing their ass off because some arrogant Ivy league doc was bragging about their new virtual endoscopy training set up, and when he asked what they used to train he scoffed when they said they didn't have anything. He then asked something along the lines, so how will you become proficient in endoscopy? To which they replied, we do on average 2 a day.