As much as I hate answering questions that weren't asked, that might not be the best answer. I have what I call the "three year plan". I determine who my "true" prospects are and form a three season plan for them. It usually ends with them being in AAA at some point in S3 but that's how I work it. So, if you do something like that, "so use your best option while working within the constraints of that plan" is probably the best answer.
In other words, if you end up with 3-1B/DH at the same level, don't sit one because there aren't enough positions. Just stick one in LF.