AC/DC.
What can you say man?
Young certainly had a vision. Not even an original one really. Blues soaked rock n roll, dirty and raunchy. After Bon Scott died and they stumbled onto Brian Johnson, sometimes great bands get lucky so to speak. BJ talked about their first week or so hanging out and said over a few days they wrote, their first time writing together, Have A Drink On Me, Shook Me All Night Long and Back In Black (I think those are the three)....not a bad start. For a band to have lightening strike twice is amazing.
That said, what was the driving force? That rhythm guitar. The riff. Malcom was content to stand in the background and let his brother and the singer capture the crowds attention. They were the showmen, but it was his band.
Malcolm's approach, his rhythm guitar and vision and a very underrated rhythm section made them great. They weren't fancy or progressive, they weren't a pop band or a blues band and they didn't follow trends. No matter where the trends went, where the "market" was they stayed true to their roots. A good ol rock n roll. band. What they became, in my humble opinion, is the best rock n roll band of all time.