Both stores stock Almond Breeze almond milk, we did a direct comparison of the product: Trader Joe's was $0.20 cheaper.
Hummus
26/29
Trader Joe's: $1.99 for 8 ounces
Whole Foods: $2.19 for 8 ounces
Eggs
27/29
Trader Joe's: $2.69 for a dozen cage-free large eggs
Whole Foods: $4.39 for a dozen organic large eggs
Note that Whole Foods' eggs are organic and Trader Joe's are cage free.
Rolled oats
28/29
Trader Joe's: $3.99 for 32 ounces, or $2.00 per pound
Whole Foods: $3.19 for 18 ounces, or $2.84 per pound
Whole Foods is definitely more expensive for meat, cheese, and specialty items like olive oil. But overall, prices for basic products were pretty similar at the two stores. Here's the final bill: