They're two very different beasts, IMHO - defending mauls is more difficult than executing them under the current interpretations, but both take a lot of skill to do right.
It is interesting we didn't really maul that much but suspect it was deliberate, in order to run the Boks around and probe their defence a bit in different channels. Besides an initial maul in the first few minutes - midfield - we didn't really attempt it.
But you see a bit more of the game plan when you look at our try - lineout 40m out, bit of first-phase subtletly near the tram tracks, then wide left, couple of hitups in centre field, before going back to the right and getting a man overlap. Kerevi slips a rush defence and hits Kellaway wide
At that point, all the Bok forwards are standing between the 15m line and the middle of the park. Three of our forwards are within 5m of Kellaway as support. They'd been suckered into defending the midfield after three phases, consolidated on the fourth, and nowhere right after.