Benjamin Hale argues no:
The hype of the moment does not necessarily translate into lasting luminance. Just scroll down the list of all the past winners of the prize, and count how many you’ve ever heard of. Start at the bottom and move upward chronologically, and you’ll find the occurrence of familiar names increases as we move closer to the present. This is not because the Pulitzer Board has gradually been growing wiser — it’s because we’re living now, not a hundred years in the future. Then we’ll see. We can’t help it — we’re blinded by our own times; all prizes are like that, and that is why, as a measure of what is good and what is not in art, they are not exactly the trustworthiest oracles.