Bumping this thread with this article from The New York Times' Wirecutter product review division. I often go first to Wirecutter when I'm needing to buy something I have no familiarity with. Their #1 pick is en route from Mr Bezo's web store as I type this.
The Best Olive Oil You Can Buy at the Store
We taste-tested 15 bottles of widely available extra-virgin olive oil. Here are our favorites.
www.nytimes.com