Curriculum, Step 1, and Match seem to be the most important
While I agree with you on curriculum, I would suggest that Step 1 and the match are actually the least important things to be using.
In terms of Step 1, you won't find accurate numbers anyhow, but honestly it is an individual endeavor. No school is going to get you a better or worse score. That is based on your own work ethic and memory and aptitude. Everyone covers the same material in classes, and everyone uses the same First Aid and board review books and qbanks. Heck, at some schools you will find folks who don't even attend lectures and claim the absence helped their grades and scores. There tend to be huge ranges at every school (from top scores to failures). But bottom line is that it is the students who do well on the boards, not the schools. If a school does better than another, that battle was won or lost in admissions, not by any value added by the school, in most cases. Plan to work really hard and you may do well coming from anywhere.
In terms of match, it is nearly impossible to interpret a match list as a premed (there have been a TON of threads on this). That a school doesn't have a lot of people going into, say, ortho, might mean that the school isn't good at preparing folks for ortho, but more often it just means nobody was interested in ortho or that the school was effective in exciting students about other fields. Folks pick programs for family reasons, geography, lifestyle choices, etc. Without knowing why someone picked something, you can't assume they didn't get something else. You just can't know. So counting up the number of folks who get derm and rads and ortho and optho is a waste of time. It isn't like undergrad where you go to the "best" you get into. You actually have to choose what you like when it gets to residency time, and some people simply are going to like peds, psych, neuro, IM, even if they have top stats and could get derm. And further, you can't possibly know which programs are better than which in the various specialties. It doesn't go by the US News rankings, and is totally different for every specialty. Some hospitals you have never heard of may be best in the world in certain specialties, while the Ivies you know from med school rankings are actually pretty middling in certain fields, or may be known to have a malignant program (residents unhappy, constantly in trouble for violating the 80 hour limitation, etc). You find out which programs are good versus malignant when you are applying in the beginning of 4th year, and get the scoop from an advisor or mentor in the field. This is very word of mouth.
But the short answer is that you can get into pretty much any field from any allo med school. Again it is the students board score and rotation grades and research etc which will drive this train, not the med school.
So things to use to decide are:
1/ Geographic location,
2/ curriculum,
3/ grading system,
4/ technology (schools with streaming or AVI lectures, and good integration of coursework online are going to offer certain advantages rather than the pen and paper and attend every lecture ilk).
5/ cost
6/ infrastructure (how nice are the lecture halls, library, hospital -- you will spend a ton of time there; does the school have ample cadavers, etc)
9/ research opportunities if you want them
10/ students who seem happy -- your vibe about a place will tell you a lot
