Can someone give a general breakdown on the difficulty of obtaining aways and audition rotations?
We use VSAS (google that for more specific info) to apply. Difficulty depends on competition - more coveted spots are more difficult to get, obv. But in general, to get some kind of away is not difficult. And "away" just means not at your home institution - doesn't necessarily have to involve travel.
Preferably by specialty?
Same process for all specialties. Again, difficulty depends on the desirableness of that rotation/site.
Would it generally be presumed that obtaining an away rotation at a higher tier school is more difficult?
Of course.
In cases that the competition arises, what would it be based on? Step 1 scores? Interviews?
Yes to scores, but really your whole CV in general. If, say, you want to do an ortho away, and you have an CV with ortho research, good grades in surgery, and a solid step 1, then that will be more competitive than somebody with less/none of those things.
As fara as I know, there aren't interviews for aways, but maybe by phone/skype... I think it's just the app though.
Does being a DO student make it more difficult?
Depends on where/what. More so some places than others, depending on bias and competition.
Any insight would be nice 🙂