Why is AC/DC overrated?

Question

AC/DC is a horrible band. The singers voice is annoying as all h**l.

Why does everyone say AC/DC is the best band when there are bands such as

Pink Floyd

Metallica

Rammstein

System of a Down

Crush 40

Suicidal Tendencies

and Deftones

Why does everyone like AC/DC?

Answer 1

Not everyone likes them.

I think one of the main attractions is the guitar work.

Answer 2

I like AC/DC but I don't think they're the best band and no one that I know does.

They're more like a radio band. You know, you'll listen to them on the radio but you don't actually own  any of their albums.