The writers we tend to universally admire, like Beckett, or Kafka, or TS Eliot, are not very prolific.
I must say, when I reread myself, it's the poetry I tend to look at. It's the most exciting to write, and it's over the quickest.
Our artistic heroes tend to be those self-exercisers, like Picasso, and Nabokov, and Wallace Stevens, who rather defiantly kept playing past dark.