At U.Toledo we have 4 students per body. Since our class is so large (165), our dissections are usually split up so that only half the class is in the lab at one time. This came from the suggestion of older students who wanted more individualized attention from the professors. I believe we have something like 6 professors + an anatomy grad student TA in the lab, every lab. They are assigned to a number of tables to help answer questions or to help us locate hard-to-find structures. Profs will help out by picking up a scalpel/scissors to show us techniques to get through really thick fascia, or how to separate nerves from CT without damaging them. And they rotate through the benches so that we can learn from all the profs, not just one. It's pretty awesome because they all seem to love learning about each body and its variation on the standard anatomy. And after years of teaching, they don't seem bored teaching the same things to a new batch of students.
We are supposed to follow Grant's dissector, but once we are in lab it's a mix of following directions from the book, written directions from the teachers, verbal directions from the teachers, and winging it. Our faculty wrote a short guide to each lab telling us what changes they want us to make from the dissector. They also give us a list of important structures to identify, which is what they consider fair game for the practicals - it is a shorter list than all bold items in the dissector.
So far, I don't have any major complaints. We have our first practical and big test coming up in two weeks, so we'll see how it goes. If I had just been given a body and a book, I would certainly be feeling lost.