I was surprised by the overall appearance of the various burgers. Although they are far from what a food stylist makes—and what is in the ads and store images—I was expecting much worse.
McDonalds – Quarter Pounder with Cheese (I order it without, but was given this anyway)

cost: $3.36
weight: 0.63 lbs.*
calories: 410 (with cheese 510)**
Burger King – Whopper

cost: $3.69
weight: 0.97 lbs.*
calories: 670**
Jack in the Box – Jumbo Jack

cost: $1.95
weight: 0.74 lbs.*
calories: 542**
* weights based on my measurements on a kitchen scale
** calories based on the nutritional information on the restaurant’s websites.