Is this a joke? Cash is like a 1960s Kelly Clarkson or Adele. Johnny Cash had an amazing voice and wrote catchy songs, but he sure as hell wasn't an exceptional songwriter.
Iron Maiden, AC/DC, Led Zeppelin, and Metallica all were better songwriters than Cash, and that's just picking from one genre. I could probably name hundreds of people who are better songwriters than Cash.
Tough guy online. Non-confrontational in person.