Many years ago, Steve Kangas pointed me to Paul Krugman as a really good economist. I've followed his writings in numerous sources since then, and have at least ten of them in the Critiques indexes. (Go to the All Links page and scroll to the first mention of his name.)
Krugman has many harsh things to say about libertarianism and Austrian economics. The one that is really relevant today is The Hangover Theory: Are recessions the inevitable payback for good times?.