- Longevity: AC/DC has been around for over 50 years, while Metallica has been around for over 40 years. This means that AC/DC has had more time to build up a fan base and release more albums.
- Number of albums sold: AC/DC has sold over 200 million albums worldwide, while Metallica has sold over 125 million albums worldwide. This means that AC/DC has a larger global fan base than Metallica.
- Popularity in the United States: AC/DC is more popular than Metallica in the United States. This is likely due to the fact that AC/DC has been around longer and has released more albums.
Of course, these are just some of the factors that may contribute to AC/DC's popularity. Ultimately, it is up to each individual to decide which band they prefer.