Simple question concerning the australian hard rock legend group AC/DC. I used to think that the album "Stiff Upper Lip" is pretty awesome and the best thing Angus Young & Co. ever made, but since I own all albums of the 70's, I have to say that the "Classic Years" with Bon Scott were a lot better. The rhythm of the songs is awesome and the voice of Bon just fits perfect. Brian Johnson isn't bad but compared to Bon, I would say that he's the second choice. What do you guys think?