IMO, what VegemitePi suggests for the comparative segment of this task is a bit too superficial to satisfy the criteria (at least technically anyway). How you go about comparing 3 articles is really going to depend on the articles in question, but as a general rule of thumb if you have two articles which are very different in spite of having the same contention you want to try and explain the reasons for this in terms of each author's respect target audience, persuasive strategy, etc; while if you have two articles which are very similar in spite of having opposing points of view, then you would want to explain it in terms of them having the same target audience, persuasive strategy, etc.
I suppose it depends to some extent on the marker, but if I was marking the SAC, what VegemitePi suggests for comparison wouldn't get above 3/5 of the mark for that criterion, because it isn't approaching the task analytically.
Sorry buddy, lol. Agreed with everything else though.