Tomatoes are about the only attribute these two have in common, so the choice comes down to personal preference. Heinz is spicier, with distinct Worcestershire notes. Market Pantry has mostly tomato flavor, which comes through precisely because it’s not as spicy. The flavor differences are apparent straight from the bottle or with fries.

With that conclusion, summarized briskly in workmanlike prose by journalists you’ve never heard of, Gladwell’s Grand Unifying Theory of Ketchup–which he was allowed to present in painstaking detail (and 5,000 words) in the nation’s most prestigious magazine–simply turns to air.

The background is in the Globe article.