Having had a

look at the Irish and now Wales I can't say there's anything the Boks need to be worried about providing they bring their A game along. In comparison, the ABs are a notch or two better than both teams and served the Boks a bigger challenge in their encounter at the WC and in the Rugby Championships. 

HAving seen enough now to make more accurate call -

I think AB / Boks / Poms / Ireland (do not write them off!!) still the ones to beat...