[dustinmr]

For what it's worth, I recently compared orders using Instacart between a Whole Foods and Publix (in Miami if it matters). I chose equivalent items from each (I.e., if I got the organic version, that's what I got at both stores). Whole Foods was about $3 cheaper on an $80 order.

It wasn't an exact comparison, as they don't always have the same products/weights, etc. But it was indicative of how I would buy at each store.