Does the artist that sold more the better artist?
It's all a matter of taste in any of the arts.
Was Elvis a better singer than Placido Domingo is now?
Whose recordings sold the most?
It is well known that ''literature'' and ''best sellers'' are two categories of writing which rarely ever come together in a book.
Shakespeare vs Agatha Christie. Who is the more popular?, who is the better author?
If volume of sales are to be used to determine the most talented and technically competent artist then The King and Auntie Agatha are the clear winners.
Many purists would disagree.