Not to cold-smoke a dead horse, but a friend of mine got me thinking about three other styles of barbecue that may actually have stronger showings in Chicago than their regions of origin* due to meat quality and consistency, even if they're not strictly Chicago-style:
-
barbacoa, Mexican pit-cooked beef or pork, of which
cochinita pibil is sometimes considered a sub-style, or Spanish pit-cooked pig, at Sol de Mexico, Casa de Samuel, Xni-Pec, Fonda del Mar, La Quebrada, Mercat a la Planxa
-
char siu, Cantonese-style shoulder, loin, or belly-cut pork in a paste or rub with hoisin and fivespice, so fantastic at Seven Treasures, Sun Wah, Shui Wah, Great Wall, Fabulous Noodles (Lisle)
-
gogi gui, Korean barbecue, particularly beef galbi and bulgogi, pork dweji bulgogi, and samgyeopsal (pork belly), seasoned to perfection at San Soo Gap San and Hae Woon Dae among others, but with some potential end user operator-error thrown in to the mix.
I would stack Chicago's entries in each of these categories against any I've tried in other major American cities. While they're not Chicago-style per se, the Chicago tradition of 'butcher to the world,' immigrant entrepreneurship, and high standards makes these top barbecue considerations, which are consumed by some communities in even potentially greater proportion to American barbecue. One could make a case for Pakistani or Persian barbecue here along the same lines.
*which is not to suggest that other styles of barbecue, or any other cuisines, are necessarily
better here than at their geograhpic roots, though we do have some unique and very delicious versions and amalgamations