As an Ivy League graduate, forgeddaboud our sports leagues. You just cannot compare the big schools to us.

totally kidding about the football, mostly just wondering about the programs if you have any insight

I can't say much for Brown or Providence to provide a point of comparison, but for Dartmouth, you want to consider whether you can handle New Hampshire and snow for 3 years (for the record, I absolutely adore rural New England but understand that many don't feel similarly). You're really the only academic game in town for ~100 miles (UVM is 97 miles away) with 1-2 other residents, so you will get lots of cases and exposure, but not as much skin of color training as you'd receive in an urban program. For either, the Ivy name is really a non-factor at this point of our training, so don't let those factors beguile you. From what I can see, though, I see there's usually one person (in a historical class size of 2) matching into dermpath/Mohs, so take that as you will, and looks like people have gone off to be faculty members at some great academic programs. Residents seem pretty set for whatever they want to be doing.