I think you could say that ACDC was Sterns biggest seller in Australia.
Joe, from Kids Just Wanna Have Fun in Perth, has told me that he's spewing they have stopped production because he's always getting asked for them.
I've no doubt that The Simpsons was a big seller and so was LotR but ACDC I think will have beaten them, at least in Australia.

Always been curious why Stern don't release production numbers.
It would be cool to know how many of certain titles were produced.