As a resident at a great residency program (considered top tier) who also applied to DO school and MD schools (mostly to get the best price and location), I will say that the benefits of going MD are true.
I think most of us will set aside the opinions of which is better, whether or not they're equal, or even whether one is more prestigious. Those arguments don't contribute to the practical answer.
Realistically speaking, DO=MD except DO's have to spend a great amount of years in one lifetime explaining that fact; while MD's use that time to go on vacation. When it comes to the match and competitive specialties, you will always find an exception to the rule and find a DO who matched into derm, plastics, urology, ophtho, ortho, etc. But in all seriousness, DO's are at a huge disadvantage when applying to these places, EVEN with great test scores (high USMLE), grades, research, and connections. If you don't believe me, talk to DO's applying to those specialties and search the forums here - there are many examples of the frustrations (though unfair sometimes) to a person because of the degree.
Most top tier residency places will not even consider a DO to their program - even if it's a less competitive specialty such as internal medicine, pediatrics, or OB-GYN. Places like Stanford, Hopkins, UCSF, UCLA, Northwestern, Columbia, Harvard (Brigham, Mass General, BIDMC) rarely if ever even interview DOs. If you think going to any university associated MD residency is prestigious, think again - it's not. There's a lot of academic snobbery that goes on (whether or not you care) and there are specific university spots you might want.
For some folks, this doesn't matter. You just want a degree with a good residency that will teach you how to be a good doctor. If that's the case, then hey whatever floats your boat - but realize that there may not be any going back in the future. For myself, I was such a person, but just in case I would change my mind, I opted to go to the "highest standard" I possibly could just for options and I'm glad I did.
When I was interviewing for both MD and DO schools, I realized the following disadvantages of DO schools:
1. Incredibly expensive for the most part.
2. Rarely a central rotational experience - a lot of times they go everywhere all over the place for rotations - it gets annoying to move around every rotation.
3. The ability to meet well known clinicians is varied, depending on where you get to go.
4. Less camaraderie because of the moving around - there is something to be said when you can see your classmates on different services (you're the neuro consult for their medicine team) and also interact on campus with 1st and 2nd years.
In the end, I chose an MD school - tuition was 1/3 of the DO tuition, I was close to my gf, got into a top place for residency, and am happy.
Best of luck, but consider the whole picture and your potential future before making a decision!