Well, I can't tell you anything about the COMLEX and USMLE scores, or residencies. If you search, you should be able to find some discussions about that.
As for me, I applied to all allopathic at first. Spring of 2004 I intended to apply to OSU-COM, as I'm a resident of OK, and whether a school was allopathic or osteopathic didn't really matter to me. But, when it came down to actually submitting AACOMAs, I was out of cash, and I thought I would have a pretty good chance at OU, the other state school. I only applied to 3 allopathic schools total. Unfortunately, OU got back to me in December that I would not be considered for interview. Later I found out that it was probably because my most mcat score, the one they look at, was one point below the cut off (which if you ask me, there's a big difference between 1 point on the mcat scale, and .3 or .4 on the gpa scale, as people with much lower gpas than me got interviews with a point or two higher on the mcat). So within this time, I got some stuff in the mail from OSU-COM, got to reading about osteopathic medicine. The philosophy of osteopathic medicine turned out to be quite similar to the one I developed about how medicine should practiced over the past couple of years and experiences I had. I decided to apply to OSU-COM late, got an interview, and was REALLY IMPRESSED. Compared to OU, I was treated a lot better through the whole application process, and I liked the way they viewed applicants as more than just a couple of scores, even initially. The school is awesome. They were so professional and friendly when I visited. I'm leaning towards family medicine or primary practice, so the U.S. News rankings impressed me more. I'm from Tulsa and want to move back there, at least for med school. So, OSU-COM is perfect for me. I'm on the waitlist right now. It has all worked out pretty well. If I don't get in this year, I will reapply to OSU, and probably to no other school. I don't want to go anywhere else.
I really have a problem with how highly regarded the mcat is at some med schools as part of the admissions process, and also other standardized tests, ACT, SAT, at undergrad institutions. I have felt that they have put me at a disadvantage when applying to undergrad and med school. The ACT didn't predict my success at undergrad to the extent that some claim it does. I scored lower (not bad, though) than most of my friends who went to my undergrad, and I have been a lot more successful than them. Well, that's my story and I'm stickin' to it.