Goose Island's Honkers Ale is what's on tap at most bars, and that's a good beer.

However, that's only one beer and Goose Island makes more than a dozen other styles which are not nearly as widely distributed. For example, the only place you're going to find things like Goose Island's excellent Belgian-style beers or their amazing Bourbon County Stout (an Imperial stout aged in oak bourbon barrels) will be the two Goose Island brewpubs. Which offer your basic pub grub and aren't particularly distinguished as restaurants, even as I do say that their house-made potato chips are extremely addictive.

Other possibilities in Chicago when you're looking to raise a glass, not brewpubs but good beer bars, would include the biergarten at the Clark Street Ale House and the Map Room.