The Pulitzer is certainly the most famous American award and it once, when I was young, seemed to be prestigious. My sense is that the only people who much care these days are reading enthusiasts, who come in several stripes -- best-seller readers, genre readers (science fiction for the males, romance for the females), and, of course, highbrows. The only ones interested in the general fiction award are likely to be the highbrows. (When I was a kid, reading, like Broadway plays, was more central to popular culture. People cared about the Pulitzer then.) The highbrows tend to be a bit condescending toward the Pulitzer, selected by those unsophisticated newspaper folks. The genre people are more interested in their own field (Hugos, Nebulas, Edgars, Stokers, Ritas, etc.) Maybe some of the best-seller readers feel like they've gotten something especially good if it is both award-winning and popular. I'm guessing here. I like the NBCC, but I don't know who else pays attention.