I'll go first.
I can honestly say that I live in a GREAT beer city! Grand Rapids Michigan is home to:
Founders (Reds Rye, Kentucky Breakfast stout, etc),
The Hideout brewery (which one an award for their Belgian tripple),
Grand Rapids Brewing co.,
BOB's house of brews,
Hopcat, which has an AMAZING selection of beer AND brews their own!
and just opening a few weeks ago, Brewery Vivant, which does Belgian style open fermentation. Haven't been there yet, but it was started by one of the original brewers from New Holland brewery.
All these breweries can be reached on foot or on a short bus ride!
If that isn't enough, Bells, Darkhorse, Arcadia, and New Holland are all just a short drive.
My favorite Grand Rapids beer is still Founders Reds Rye. One of their original beers. Founders also makes a killer oatmeal stout, but you have to go to the brewery to get it!
I also really like Darkhorse Crooked Tree IPA, Hopcats Dortmunder lager, and when I can find it, Founders harvest ale.