Component differences in peak vs. avg. current mode control?

I am trying to figure out the difference in components between a peak and an average current mode control (ACMC) setup. There doesn't appear any difference between the block diagram of fig. 12.12 (which is in the peak current mode control section) and the block diagram presented for ACMC. Both have the voltage loop and the current loop as well as the comparator to compare iL and ic. I am guessing, then, the differences are: 1) The current sensor in peak control will be sensing the instantaneous inductor current, while the one in average control will sense the average inductor current. 2) The comparator comparing iL and ic in peak control operates in the open loop condition (no feedback to reduce its gain) and hence puts out either "1" or "0", whereas the one in ACMC operates with a finite gain (closed loop form). 3) Finally, the current command (variously called i^c*Rs and i^c*Rc in class) would need to reflect the peak and average inductor currents respectively. Would these be the only differences between a peak control and ACMC setup? Nitish